Vocabulary — Synonyms, Antonyms, Idioms & One-Word Substitution
Vocabulary is the other half of the English section: of the 25 English questions in SSC CGL Tier-I, roughly ten to twelve are pure word knowledge — synonym, antonym, one-word substitution, idiom meaning, spelling and the choice between confusable pairs. Unlike grammar, this is not a set of rules but a stock; and unlike an unlimited stock, the paper recycles a fairly small one. This chapter is that stock, organised so it can be revised rather than merely read: clustered synonyms and antonyms, the idioms that keep returning, one-word substitutions by theme, the confusable pairs, the spellings and the word roots that let you guess intelligently at a word you have never met.
Cracking an Unknown Word — Roots, Prefixes and Suffixes
Most hard English words are built from Latin and Greek parts. Benevolent is bene (well) + vol (wish): wishing well. Misanthrope is mis (hate) + anthrop (human): a hater of humankind. Learn thirty such parts and you will make an educated guess at hundreds of words you have never seen — which is exactly what the paper is measuring.
| Part | Meaning | Words built on it |
|---|---|---|
| bene- | good, well | benefit, beneficial, benevolent, benefactor, benign, benediction |
| mal- | bad, ill | malice, malevolent, malady, malfunction, malignant, maltreat, malnutrition |
| chron- | time | chronology, chronic, chronicle, anachronism, synchronise |
| phil- | loving, fond of | philanthropy, philosophy, bibliophile, philately, Anglophile |
| -phobia | fear of | hydrophobia, claustrophobia, acrophobia, xenophobia |
| -cide | killing | homicide, suicide, genocide, regicide, patricide, insecticide |
| -graphy / graph- | writing, recording | biography, autobiography, calligraphy, geography, autograph, telegraph |
| ante- | before, prior | antecedent, antechamber, antedate, antenatal |
| anti- | against, opposite | antidote, antipathy, antithesis, antiseptic, antibiotic |
| circum- | around | circumference, circumnavigate, circumspect, circumvent, circumlocution |
| magn- | great, large | magnify, magnitude, magnificent, magnanimous, magnate |
| omni- | all | omniscient, omnipotent, omnipresent, omnivorous |
| ped- (Latin) | foot | pedestrian, pedal, pedestal, biped, expedite |
| script- / scrib- | to write | manuscript, inscription, postscript, prescribe, transcribe, scribble |
| vita- / viv- | life, to live | vital, vitamin, vivid, vivacious, revive, survive |
| mis- / miso- (Greek) | hatred | misogynist, misanthrope, misogamist |
| anthrop- | human being | anthropology, philanthropist, misanthrope |
| -cracy / -archy | rule, government | democracy, autocracy, bureaucracy, theocracy, monarchy, anarchy, oligarchy |
🧠 Two negative prefixes that decide many antonym questions
When the question asks for an antonym and one option carries in-, im-, il-, ir-, un-, dis-, non-, mis- or a- / an-, look at it first: audible / inaudible, legible / illegible, reparable / irreparable, theist / atheist, moral / amoral. But beware the false friends — invaluable means priceless, not worthless; inflammable means easily set on fire, the same as flammable; and disinterested means impartial, not uninterested.💡 A word is a train, not a brick
Treat every long word as a train of coaches rather than one solid brick. Circum + navig + ate = sail around. Anti + bio + tic = against life (of bacteria). Auto + bio + graphy = self + life + writing. Once you get into the habit of uncoupling the coaches, circumlocution stops being frightening: circum (around) + locu (speak) — talking around a point instead of coming to it, which is exactly what the idiom beat about the bush describes.High-Frequency Synonym and Antonym Sets, Grouped by Theme
Do not memorise word lists alphabetically; memorise them in opposed pairs of clusters. The paper almost always builds a synonym question out of one cluster and an antonym question out of the two clusters facing each other, so learning them together doubles your return on the same effort.
| Theme | Cluster A | Cluster B — its opposite |
|---|---|---|
| Praise vs criticism | Praise: laud, extol, eulogise, commend, acclaim, applaud, exalt, venerate | Criticism: censure, denounce, condemn, reproach, reprimand, castigate, deride, disparage, denigrate, vilify |
| Abundance vs scarcity | Abundance: plenty, profusion, plethora, copious, ample, opulence, affluence, prolific, teeming | Scarcity: dearth, paucity, scarcity, scanty, meagre, sparse, penury, deficit |
| Anger vs calm | Anger: irate, furious, incensed, indignant, livid, enraged, exasperated, irascible, choleric, seethe, fume | Calm: placid, serene, composed, tranquil, equanimity, and the verbs pacify, placate, mollify, appease, assuage |
| Fear vs courage | Fear: dread, trepidation, apprehension, terror, panic, timid, timorous, craven, pusillanimous, aghast, daunted | Courage: intrepid, dauntless, undaunted, audacious, valiant, fearless, fortitude, mettle |
| Honesty vs deceit | Honesty: integrity, probity, veracity, candid, forthright, upright, scrupulous, sincere | Deceit: duplicity, mendacity, deceit, guile, chicanery, perfidy, fraudulent, unscrupulous, evasive |
| Secrecy vs openness | Secrecy: clandestine, covert, furtive, surreptitious, stealthy, cryptic, discreet, confidential, incognito | Openness: overt, blatant, manifest, patent, conspicuous, flagrant, explicit, candid |
- Ready-made antonym pairs worth learning as units: laud / censure, extol / denounce, plethora / dearth, affluence / penury, prolific / barren, irate / placid, incense / placate, timid / intrepid, probity / duplicity, veracity / mendacity, clandestine / overt, cryptic / explicit.
- Watch the difference between a state and the act of changing it: irate is the state of anger, while placate, mollify, appease and assuage are the acts of removing it. The paper often makes the key a verb when the question word is an adjective.
- Three words about talking, often confused: garrulous means excessively talkative, laconic means using very few words, and taciturn means habitually silent and reserved.
One-Word Substitution — The Core Stock
This is the most predictable vocabulary format in the paper, because the same few dozen items rotate. Read the description, isolate the decisive word in it, and let a root do the rest: hates women points at miso + gyn; knows everything points at omni + sci.
| Description | The one word |
|---|---|
| One who hates women | misogynist |
| One who hates mankind in general | misanthrope |
| One who loves mankind and works for its welfare | philanthropist |
| One who puts the welfare of others before his own | altruist |
| One who is always talking about himself; a self-centred person | egotist |
| A lover and collector of books | bibliophile |
| An expert judge in matters of taste, such as art or food | connoisseur |
| One devoted to the pleasures of good eating and drinking | epicure |
| A very strict disciplinarian | martinet |
| One who attacks cherished beliefs and established institutions | iconoclast |
| A fanatical and uncompromising supporter of a cause | zealot |
| One who never drinks alcoholic liquor | teetotaller |
| One who walks in his sleep | somnambulist |
| One who knows everything | omniscient |
| One who is able to use both hands equally well | ambidextrous |
| Description | The one word |
|---|---|
| Habitual inability to sleep | insomnia |
| A supposed remedy for all diseases and ills | panacea |
| Lasting for a very short time | ephemeral |
| Excessively talkative | garrulous |
| Fond of the company of others; living in flocks | gregarious |
| A sentimental longing for the past | nostalgia |
| Taking another person’s writing and passing it off as one’s own | plagiarism |
| The violation or profanation of something sacred | sacrilege |
| An imagined place where everything is perfect | utopia |
| Repeated in exactly the same words | verbatim |
| Government by one person holding absolute power | autocracy |
| Absence of government, resulting in disorder | anarchy |
| Occurring or published after a person’s death | posthumous |
| A name that is wrongly or unsuitably applied | misnomer |
| A post that carries pay or honour but requires little work | sinecure |
⚠️ Pairs the paper deliberately places side by side
An atheist denies that God exists; an agnostic holds that we cannot know either way. A misanthrope hates people; a misogynist hates women specifically; a misogamist hates marriage. An epicure loves fine food; an ascetic renounces comfort altogether. A connoisseur judges taste; a critic judges quality. An egotist talks endlessly of himself; an egoist acts from self-interest. Read the description twice before choosing — the distractor is usually the neighbouring word, not a random one.Idioms and Phrases
An idiom means something its individual words do not. That is precisely why the paper likes it: The paper always offers the literal reading as a distractor. To take someone to task has nothing to do with assigning work — it means to scold. Cross out the literal option first, every time.
| Idiom / phrase | Meaning |
|---|---|
| a bolt from the blue | A sudden, wholly unexpected and usually unpleasant event |
| at daggers drawn | Bitterly hostile; ready to quarrel openly |
| bury the hatchet | To make peace and end a quarrel |
| call a spade a spade | To speak plainly and frankly, however unpleasant |
| cry over spilt milk | To waste time regretting what cannot now be undone |
| curry favour | To win someone’s goodwill by flattery |
| hit the nail on the head | To say or do exactly the right thing; identify the exact point |
| in the nick of time | Just in time; at the last possible moment |
| let the cat out of the bag | To reveal a secret, often unintentionally |
| make both ends meet | To manage to live within one’s limited income |
| on the spur of the moment | On a sudden impulse, without any planning |
| pull one’s socks up | To make a determined effort to improve |
| smell a rat | To suspect that something is wrong; sense foul play |
| spill the beans | To disclose confidential information |
| take to task | To rebuke or scold someone for a fault |
| turn a deaf ear | To refuse to listen; ignore deliberately |
| once in a blue moon | Very rarely indeed |
| blow one’s own trumpet | To praise oneself; boast about one’s achievements |
| a wild goose chase | A foolish and hopeless pursuit of something unattainable |
| to be in hot water | To be in serious trouble |
| beat about the bush | To talk around a subject instead of coming to the point |
| burn the midnight oil | To study or work late into the night |
| a white elephant | A possession that is costly to keep and of no real use |
| a snake in the grass | A hidden or treacherous enemy |
| bell the cat | To take the lead in a risky undertaking |
| a storm in a teacup | A great fuss made over something trivial |
📖 Where three of these came from
Idioms stick when they carry a picture. Bury the hatchet comes from the practice of literally burying weapons when hostilities ended. Bell the cat comes from the old fable in which mice agree that a bell round the cat’s neck would save them — and then nobody volunteers to tie it, which is why the phrase means taking on the dangerous part yourself. Let the cat out of the bag recalls a market trick in which a cat was substituted for a piglet in a sack; open the sack and the fraud stands revealed. Attach the picture to the phrase and you will not confuse it with spill the beans, which is the plainer act of simply telling the secret.Confusable Pairs — Words That Differ by One Letter
These are free marks if you know them and certain losses if you do not. The reliable method is to fix the part of speech first: in The ____ of the school spoke, the blank must be a noun naming a person, so it is principal; in a matter of ____, it must be an abstract noun, so it is principle.
| Pair | Meanings | Memory hook |
|---|---|---|
| principal / principle | principal = chief, or the head of a school, or a sum of money; principle = a rule or moral truth | The principal is your pal; a principle is a rule |
| stationary / stationery | stationary = not moving; stationery = paper, pens and writing material | Stationery contains e for envelope |
| complement / compliment | complement = to complete or make whole; compliment = words of praise | Complement completes; compliment is what I like to hear |
| eminent / imminent | eminent = distinguished, famous; imminent = about to happen very soon | Imminent is immediate |
| adapt / adopt / adept | adapt = adjust to suit; adopt = take up as one’s own; adept = highly skilled | Adapt to a situation, adopt a child, be adept at a skill |
| affect / effect | affect = verb, to influence; effect = noun, the result — and, rarely, a verb meaning to bring about | Affect is the action; effect is the end result |
| moral / morale | moral = concerning right and wrong, or the lesson of a story; morale = the confidence and spirit of a group | Morale ends in e for enthusiasm |
| lose / loose | lose = verb, to misplace or be defeated; loose = adjective, not tight | Loose has an extra o because it is too big and slack |
| cite / site / sight | cite = to quote as evidence; site = a location; sight = the power of seeing, or a view | Cite in a citation, a construction site, sight needs your eye |
| allusion / illusion | allusion = an indirect reference; illusion = a false impression | An allusion alludes; an illusion is illusory and untrue |
| council / counsel | council = an assembly of persons; counsel = advice, or a lawyer, or to advise | A council has councillors; counsel is what a counsellor gives |
| credible / credulous / creditable | credible = believable; credulous = too ready to believe; creditable = deserving praise | A credible story fools a credulous listener; a creditable effort earns credit |
ℹ️ Three more pairs worth ten seconds each
Historic means momentous (a historic verdict), while historical merely relates to history (a historical novel). Ingenious means cleverly inventive, while ingenuous means innocent and frank. Momentary means lasting a moment, while momentous means of great importance. And note beside (next to) against besides (in addition to), a pair that appears in both the grammar and the vocabulary halves of the paper.Commonly Misspelt Words
Almost every spelling question turns on one of three things: a doubled consonant, an unstressed vowel you cannot hear, or an ending that sounds identical to another ending (-able against -ible, -ance against -ence). Learn the fifteen words below and you will have covered most of what the paper actually sets.
| Wrong form usually offered | Correct spelling | What to remember |
|---|---|---|
| acommodation, accomodation | accommodation | Two c and two m — it accommodates both doubles |
| ocurrence, occurence, occurrance | occurrence | Two c, two r, and the ending is -ence |
| embarass, embarras | embarrass | Two r and two s — doubly embarrassing |
| harrass, harras | harass | Only one r, but two s — the mirror image of embarrass |
| seperate, seperete | separate | There is a rat in sep-a-ra-te |
| definately, definitly | definitely | It contains the whole word finite |
| privelege, priviledge | privilege | No d anywhere, and the vowels run i–i–e |
| maintainance, maintanance | maintenance | The verb is maintain but the noun drops the i: -tenance |
| mischievious, mischievous | mischievous | No i after the v — three syllables, not four |
| pronounciation | pronunciation | The noun drops the o of pronounce |
| commitee, comittee | committee | Two m, two t, two e — three pairs in a row |
| supercede | supersede | The only common English word ending in -sede |
| millenium | millennium | Two l and two n — from mille plus annus |
| questionaire | questionnaire | Two n before -aire |
| indispensible | indispensable | It takes -able, while irresistible takes -ible |
🧠 Two spelling rules that pay for themselves
First, i before e except after c when the sound is /ee/: believe, achieve, relief, niece but receive, ceiling, deceive. The famous exceptions are seize, weird, either and neither — learn those four as a set and the rule stops misleading you. Second, when a suffix beginning with a vowel is added to a word ending in a single stressed vowel plus a consonant, that consonant doubles: refer → referred, begin → beginning, occur → occurring. But benefit → benefited and offer → offered, because the stress there falls on the first syllable.Turning the Stock into Marks
Vocabulary rewards spaced repetition, not long sittings. Twenty minutes a day on a small, fixed list beats a four-hour sprint through a thousand words that you will not recall next week. Build the list from what the exam has actually asked, not from a dictionary.
- Keep one notebook page per theme — praise, criticism, fear, secrecy — and add every new word to the page where it belongs. Words stored in clusters are recalled in clusters.
- For every idiom write one sentence of your own. An idiom you have used once is an idiom you will recognise under time pressure.
- Revise on the schedule that memory actually follows: the same day, then after three days, then after a week, then after a month.
- In the exam, do the vocabulary questions before the reading comprehension. Each one takes ten to fifteen seconds, and the marks banked early buy you time for the passage.
- When two options look equally right in a synonym question, prefer the one that matches the register and the part of speech of the given word — The paper keys the closer fit, not merely a related idea.
⚠️ Four traps that cost candidates marks every year
One: answering an antonym question with a synonym, because you read the instruction too fast — underline the words similar or opposite before you look at the options. Two: choosing the literal meaning of an idiom. Three: picking the word you have seen most often rather than the one that fits; frequency is not accuracy. Four: attempting a spelling question by feel — count the doubled letters instead, since that is where three of the four options are built to fail.Key takeaways
- Pure vocabulary is usually about half of any English section that has one, and those are its fastest marks — ten to fifteen seconds each if the word is known. Your own paper’s share is in the opening section.
- Learn parts, not just whole words: bene (good), mal (bad), chron (time), phil (loving), phobia (fear), cide (killing), graphy (writing), ante (before), anti (against), circum (around), magn (great), omni (all), ped (foot), script (write), vita (life), miso (hatred), anthrop (human), cracy (rule).
- Store synonyms in opposed clusters — praise against criticism, abundance against scarcity, fear against courage — so that one page of notes answers both synonym and antonym questions.
- In an antonym question three options are usually synonyms of the given word: clandestine, covert, furtive, stealthy all mean secret, so the odd one — overt — is the key.
- One-word substitution repeats a small stock: misogynist, misanthrope, philanthropist, altruist, egotist, bibliophile, connoisseur, epicure, martinet, iconoclast, zealot, teetotaller, somnambulist, omniscient, ambidextrous, insomnia, panacea, ephemeral, garrulous, gregarious, nostalgia, plagiarism, sacrilege, utopia, verbatim, autocracy, anarchy, posthumous, misnomer, sinecure.
- In an idiom question always strike out the literal option first. Take to task means to scold, smell a rat means to suspect foul play, and a white elephant is a costly useless possession.
- Settle confusable pairs by part of speech: principal is a person or a chief thing, principle is a rule; affect is the verb, effect is the result; stationary is not moving, stationery is what you write on.
- Spelling questions hinge on doubled letters and on -able against -ible: accommodation, occurrence, embarrass, harass, committee, millennium, questionnaire, indispensable, supersede, maintenance, pronunciation, mischievous.
- Work the guessing decision from your own paper’s penalty, which the opening section gives: where a wrong answer costs a large fraction of a right one, eliminate at least two options first — a root, a prefix or the literal-idiom rule will usually get you there.
Practice questions (8)
Attempt each one before opening the answer. Every explanation names the tempting wrong option as well as the right one, because that is where marks are lost.
Select the word most nearly similar in meaning to GARRULOUS.
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Answer: C — **Talkative**
Garrulous means excessively talkative, especially about trivial matters, so talkative is the closest synonym. Reserved is its opposite, and belongs with taciturn and laconic. Generous is a distractor that works only on sound — it has no connection with garrulous. Store the trio together: garrulous = too talkative, laconic = using very few words, taciturn = habitually silent.Select the word most opposite in meaning to CLANDESTINE.
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Answer: A — **Overt**
Clandestine means kept secret because it is illicit. Furtive, stealthy and covert all mean secret as well, so they are synonyms, not opposites — this is the standard the paper design, in which three options belong to one cluster and the fourth is the key. Overt means done openly and without concealment, and is therefore the antonym. Notice the near-twins covert and overt, which differ by a single letter and by a complete reversal of meaning.Select the one word for the given description: one who abstains completely from alcoholic drinks.
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Answer: D — **Teetotaller**
A teetotaller is precisely one who never takes alcoholic drink. An epicure is devoted to the pleasures of good food and drink — the opposite leaning. A connoisseur is an expert judge of taste in art or food, which says nothing about abstaining. An ascetic practises severe self-denial of all comforts, which is broader than alcohol alone, so it is close but not exact. The paper almost always plants the broader word as the distractor; pick the one that matches every part of the description.Select the option that best expresses the meaning of the underlined idiom: The manager _took his assistant to task_ for the delay in the report.
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Answer: B — **reprimanded him**
To take someone to task means to rebuke or scold that person for a fault, so reprimanded him is correct. Option 2, assigned him extra work, is the literal reading of the word task and is exactly the trap the paper builds into every idiom question — the individual words of an idiom never give its meaning. Option 0 reverses the sense, and option 3 imports an action the idiom does not contain.Select the correctly spelt word.
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Answer: D — **Occurrence**
The correct spelling is occurrence — two c, two r and the ending -ence. Option 0 drops one c, option 1 drops one r, and option 2 uses -ance instead of -ence. The doubled r comes from a general rule: when a suffix beginning with a vowel is added to a word ending in a stressed vowel plus consonant, the consonant doubles, as in occur → occurring, occurred, occurrence and refer → referred.Fill in the blanks with the correct pair: The school ____ addressed the students on the ____ of honesty.
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Answer: A — **principal / principle**
Decide the part of speech for each blank. The first blank is the person who addressed the students — the head of the school — which is principal. The second blank needs an abstract noun meaning a moral truth or rule, which is principle. The memory hook is that the principal is your pal, while a principle is a rule. This pair, along with stationary / stationery and complement / compliment, appears almost every year.A person described as omniscient is one who —
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Answer: C — **knows everything**
Split the word: omni means all and sci means to know, as in science and conscious. So omniscient is all-knowing. The three distractors are its siblings from the same omni family, and each is a real word in its own right: omnipotent is all-powerful, omnipresent is present everywhere, and omnivorous feeds on both plants and flesh. Whenever a question offers a set of same-prefix words, the second half of the word decides the answer.Select the option that best expresses the meaning of the idiom a wild goose chase.
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Answer: B — **a foolish and hopeless pursuit**
A wild goose chase is a search or pursuit that has no realistic hope of success, so a foolish and hopeless pursuit is correct. Option 0 is the literal hunting image and is the standard trap. Option 2 defines a different idiom altogether — a bolt from the blue — and option 3 reverses the sense, since the whole point of the phrase is that nothing is gained. Keep these three apart: a wild goose chase is futile effort, a bolt from the blue is a sudden shock, and a storm in a teacup is a great fuss over a trifle.