Commonly Confused Words
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50 free Commonly Confused Words trivia questions with answers — trivia quiz, new questions added Oct 2026.
English is full of words that sound alike, look alike or sit so close in meaning that even confident writers hesitate. A single letter can turn a compliment into nonsense, and a misheard idiom can live in a person's vocabulary for decades before anyone points it out. This quiz works through the mix-ups that cause the most trouble. Some questions ask you to pick the spelling that fits a sentence, some ask what a slippery word really means, and others test the sayings people most often get wrong. Each answer comes with a short explanation, often the word's origin, so the right choice is easier to remember next time. It suits students revising for an English test, teachers who want a ready-made classroom or printable quiz, and anyone who enjoys settling an argument about usage. The questions range from gentle warm-ups to pairs that challenge keen readers.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which spelling completes 'with ___ breath', a phrase Shakespeare used in The Merchant of Venice for anxious waiting?
Bated
Bated is a clipped form of 'abated', so the phrase pictures breathing that is held back or reduced. The word now survives only in this one expression.
Q 02A liquid labelled 'inflammable', a word built on the Latin verb 'inflammare', is best described as which of these?
Easily set on fire
Easily set on fire is the meaning: the 'in-' comes from Latin 'inflammare', to set alight, and is not a negative. Safety bodies pushed the plainer 'flammable' because people misread the older word as fireproof.
Q 03Which word completes 'for all ___ and purposes', a phrase that echoes an English law adopted under Henry VIII?
Intents
Intents is the word: the phrase comes from 'to all intents, constructions, and purposes' in a Tudor act of Parliament. Saying 'intensive purposes' instead is a well-known eggcorn, a slip that almost makes sense.
Q 04Which spelling is the cheer of agreement shouted in the British House of Commons, where applause is normally forbidden?
Hear, hear
Hear, hear is short for 'hear him, hear him!', a late-1600s call for MPs to pay attention to a speaker. It had shrunk to its modern form by the late 18th century.
Q 05Which word do traditional grammar guides require before countable plurals, as in 'ten items or ___' at a checkout?
Fewer
Fewer is what prescriptive guides demand for things you can count, a preference the grammarian Robert Baker first voiced in 1770. Tesco sidestepped the row in 2008 with signs reading 'up to 10 items'.
Q 06Which cave formation hangs from the ceiling, its name taken from the Greek word for 'dripping'?
Stalactite
Stalactite is the one that clings to the roof, while the stalagmite rises from the floor beneath it. If the two grow long enough to meet, they join into a single column.
Q 07Which spelling completes the idiom 'give someone free ___', meaning to let them act without limits?
Rein
Rein is correct: a rider who slackens the straps lets the horse move more freely. 'Free reign', which pictures a monarch instead, is a common misspelling.
Q 08Which word completes '___ the line', an idiom for conforming first printed in The Army Regulator in 1738?
Toe
Toe is right: in that 1738 text an officer forming ranks barks 'Silence you dogs, toe the line', meaning put your feet on the mark. The misspelling 'tow' wrongly suggests hauling a rope.
Q 09Someone who escapes punishment gets off '___-free', a phrase built on which Old English word for a royal tax?
Scot
Scot was a late Old English royal tax, so 'scot-free' first meant exempt from paying it. The word traces back to Old Norse 'skot', a contribution.
Q 10The word 'dessert', with its double 's', comes from the French verb 'desservir', which means to do what?
Clear the table
Clear the table is the sense, since the sweet course arrived once the main dishes were taken away. The sandy 'desert' with one 's' comes instead from Latin 'desertum', a thing abandoned.
Q 11Which form completes the sentence '___ leaving for the airport at noon'?
They're
They're is a shortened form of 'they are', so it fits wherever those two words would. 'Their' shows possession and 'there' points to a place, yet all three sound the same.
Q 12Which form begins the title of the First World War marching song '___ a Long Way to Tipperary'?
It's
It's is the contracted form of 'it is' or 'it has', which is what the song title needs. The possessive 'its' takes no apostrophe, just like 'my', 'your' and 'his'.
Q 13Which word completes 'Try not to ___ your passport', a verb that rhymes with 'choose'?
Lose
Lose is the verb, and it shares an ancient Germanic root with 'loose', 'loss' and the ending '-less'. 'Loose' with two o's usually describes something not firmly held or fastened.
Q 21Which form completes 'Yesterday I ___ on the sofa for an hour', as the past simple of 'lie', to recline?
Lay
Lay is the past simple of 'lie', which is exactly why this pair causes so much trouble. The separate verb meaning to put something down takes the form 'laid', while 'lain' is very formal and rarely used.
Q 22Which verb, from the Latin for 'to fill up', means to go well with something, as a wine does a dish?
Complement
Complement shares its root with 'complete', so it is the word for whatever fills out or finishes something. A 'compliment' with an 'i' is a remark of praise.
Q 23Which of these is a 'principle', a word from the Latin for 'a beginning', as opposed to a 'principal'?
A basic moral rule
Q 14Which word completes 'Please ___ this gift', a verb built on the Latin 'capere', meaning 'to take'?
Accept
Accept joins Latin 'ad', to, with 'capere', to take, so it means to receive willingly. 'Except' swaps in 'ex', out, which is why it leaves things out.
Q 15Which word completes 'Mount Everest is taller ___ K2', a spelling English only separated from its twin around 1700?
Than
Than grew out of the adverb 'then', and the two were not told apart in spelling until about 1700. Today the 'a' form handles comparisons and the 'e' form handles time.
Q 16Which word completes 'The drought will ___ wheat prices', the verb in a pair where the noun partner means a result?
Affect
Affect is the verb, meaning to influence something or cause it to change. Its partner 'effect' is the noun for the result of that influence, as in 'a bad effect on me'.
Q 17Which spelling names the flash seen before thunder, a word with an Old English ancestor that also meant daybreak?
Lightning
Lightning, with no 'e', is the electrical flash, and in Middle English the word could also mean intense brightness. 'Lightening' with an 'e' is the act of making something less heavy or less dark.
Q 18Which word completes 'The library was completely ___', the two-syllable adjective of a lookalike pair?
Quiet
Quiet is the two-syllable adjective meaning making very little noise. Its lookalike 'quite' is an adverb, as in 'quite busy', and the pair differ in both spelling and sound.
Q 19Which spelling completes 'The cyclist ___ three cars on the climb', where the missing word is the act of overtaking?
Passed
Passed is the simple past tense of the verb 'pass', so it is the form for any action of going by. Its homophone 'past' serves as a noun, adjective, adverb or preposition instead.
Q 20Which word opens the title of the improv comedy show '___ Line Is It Anyway?' and asks about possession?
Whose
Whose asks who something belongs to, which is why it fronts questions about possession. 'Who's' is a short form of 'who is' or 'who has'.
A basic moral rule is a principle, as is a theory that explains how something works. Head teachers and sums of money lent or invested take the '-pal' spelling, which also serves as an adjective meaning most important.
Q 24Which of these is 'stationery' with an 'e', a word that began with booksellers trading from fixed shops?
A box of envelopes
A box of envelopes is stationery, the paper goods once sold by a 'stationer'. Unlike roving peddlers, medieval stationers sold from a fixed shop, often a bookshop licensed by a university.
Q 25In American usage, which of these is a 'capitol' with an 'o', a spelling borrowed from a temple hill in ancient Rome?
A legislature's building
A legislature's building is the only meaning of 'capitol', named after the Capitolium, the temple of Jupiter on Rome's Capitoline Hill. Cities, uppercase letters and money all take the 'a' spelling.
Q 26Which adjective, from a Latin verb meaning 'to overhang', describes a storm that is about to strike?
Imminent
Imminent comes from Latin 'imminere', to overhang or lean towards, so it suits anything looming close. 'Eminent' means famous and respected, while the rarer 'immanent' means present as a natural part of something.
Q 27Which word names an indirect reference, such as a novel's nod to the Bible, and comes from the Latin for 'to play'?
Allusion
Allusion comes from Latin 'alludere', to play or jest, and in the 1550s it could mean a joke or piece of word-play. 'Illusion', 'delusion' and 'collusion' share the same playful root, 'ludere'.
Q 28Which word means advice, especially a lawyer's, and descends from the Latin 'consilium', a plan or opinion?
Counsel
Counsel means advice and, in court, the lawyers who give it, from Latin 'consilium'. A 'council' is a body that meets, from the separate Latin word 'concilium', a gathering of people.
Q 29Which spelling names the thin board on which a painter mixes colours, a word that began as French for a small shovel?
Palette
Palette comes from Old French 'palete', a small shovel or blade, itself from the Latin for a spade. The 'palate' is the top of the inside of the mouth, and a 'pallet' is a wooden platform for moving heavy goods.
Q 30Which spelling completes 'The marathon will test your ___', a word for spirit that split from a soundalike in the 1700s?
Mettle
Mettle began in the 1580s simply as a variant spelling of 'metal'. The spellings diverged in the early 18th century, and this one kept the figurative sense of a person's inner stuff.