Buoyant (adjective) Cheerful and optimistic, or, when describing an economy or market, growing strongly and performing well.
Example: Despite global uncertainty, the housing market remained buoyant throughout the year.
Mnemonic: Picture a buoy floating happily on water — buoyant things stay up and refuse to sink, moods and markets alike.
Catalyst (noun) A person or event that causes an important change or action to happen.
Example: The documentary became a catalyst for nationwide debate about food waste.
Mnemonic: In chemistry a catalyst speeds up a reaction without being used up itself — in life it sparks change the same way.
Coherent (adjective) Logically connected and easy to follow, so that all the parts make sense together.
Example: After the medication took effect, the patient's speech became far more coherent.
Mnemonic: Co- means together, and the root relates to sticking, as in cohere — a coherent argument holds together well.
Coincide (verb) To happen at the same time as something else, or to match up closely with it.
Example: The professor's guest lecture happened to coincide with the university's final exam week.
Mnemonic: 'Co-' (together) plus a root related to 'incident' — two events landing side by side in time.
Compelling (adjective) So interesting, powerful, or convincing that it demands your full attention or agreement.
Example: The lawyer presented compelling evidence that changed the jury's opinion entirely.
Mnemonic: Related to 'compel,' meaning to force — a compelling argument almost forces you to believe it.
Complacent (adjective) Overly satisfied with oneself or one's situation, to the point of ignoring real risks.
Example: After years of easy wins, the champion grew complacent and lost to a far less experienced opponent.
Mnemonic: Hear it as 'complete' plus 'pleasant' — a complacent person feels things are already so complete and pleasant that there's no reason to try any harder.
Comprehensive (adjective) Complete and including everything that is necessary or relevant to a subject.
Example: The clinic offers a comprehensive health checkup that covers over twenty different tests.
Mnemonic: Related to 'comprehend,' meaning to fully understand — a comprehensive review leaves nothing out of the picture.
Conceive (verb) To form an idea or plan in your mind, or to imagine something as possible.
Example: It's hard to conceive how life would function today without the internet.
Mnemonic: 'Con-' (together) plus a root meaning to take, as in receive — you take scattered thoughts together to form one idea.
Concede (verb) To reluctantly admit that something is true, or to give up a point, right, or advantage.
Example: After reviewing the data, the critic conceded that the new policy had reduced traffic accidents.
Mnemonic: 'Con-' (completely) plus a root meaning to yield, as in recede — you fully yield ground on a point you once argued.
Concise (adjective) Expressing what needs to be said clearly and briefly, with no wasted words.
Example: Her concise summary captured the entire forty-page report in a single paragraph.
Mnemonic: Think of scissors snipping away every unnecessary word until only the concise core remains.
Conducive (adjective) Creating favorable conditions that help produce a particular, usually positive, result.
Example: A quiet, well-lit room is more conducive to focused study than a noisy cafe.
Mnemonic: Related to 'conduct,' meaning to lead — a conducive environment leads or guides you naturally toward success.
Consolidate (verb) To combine several things into one stronger, more unified, or more effective whole.
Example: The bank consolidated its twelve regional branches into three larger, better-equipped offices.
Mnemonic: Notice 'solid' hiding inside — you turn several loose parts into one solid whole.
Constitute (verb) To be one of the parts that together make up or form a whole.
Example: Renewable sources now constitute nearly a third of the country's total energy supply.
Mnemonic: A constitution is built from many rules put together — to constitute is to be one of the pieces that forms the whole.
Contemplate (verb) To think about something carefully and seriously for a long time.
Example: Before accepting the job offer, she spent a week contemplating the move to another country.
Mnemonic: A temple is a quiet place for reflection — to contemplate is to sit with a thought as if inside one.
Contentious (adjective) Likely to cause disagreement or argument; controversial.
Example: Immigration policy remained the most contentious topic at every town hall meeting that year.
Mnemonic: Contentious shares a root with 'contend,' meaning to fight or compete — a contentious topic is one people are still actively fighting over.
Convene (verb) To come together, or to call people together, for a formal meeting or gathering.
Example: World leaders convened in the capital to discuss the new climate agreement.
Mnemonic: 'Con-' (together) plus a root meaning to come, as in venue — people come together to one shared venue.
Convey (verb) To communicate or make a feeling, idea, or piece of information understood by others.
Example: The poet used simple imagery to convey the depth of her grief.
Mnemonic: Think of a conveyor belt carrying objects along — convey carries a message from your mind to someone else's.
Correlate (verb) To have a mutual relationship such that when one thing changes, the other tends to change too.
Example: Studies show that hours of sleep correlate closely with students' academic performance.
Mnemonic: 'Co-' (together) plus 'relate' — two things correlate when they move together in relation to each other.
Credible (adjective) Capable of being believed because it seems honest, reliable, or well-supported.
Example: The jury found her credible because her story never changed under intense questioning.
Mnemonic: Credible relates to 'credit' and 'credo,' meaning I believe — a credible source earns your trust and credit.
Criterion (noun) A standard or principle used as the basis for judging, deciding, or evaluating something.
Example: Punctuality was one of the key criteria the judges used to score each performance.
Mnemonic: Picture a critic holding a checklist — each item on that list is a criterion they judge you against.
Culminate (verb) To reach a final, climactic point after a series of events or a period of development.
Example: Years of protests culminated in the government finally repealing the unpopular law.
Mnemonic: From a Latin word for summit — events build up like climbing a hill until they reach the very top.
Cumulative (adjective) Increasing steadily as more things of the same kind are added to what came before.
Example: The cumulative effect of small daily habits can lead to major health improvements over a lifetime.
Mnemonic: Shares its root with 'accumulate' — cumulative describes something piling up, layer upon layer.
Curtail (verb) To reduce or limit something, especially by cutting short its extent or duration.
Example: The city curtailed late-night bus services due to falling passenger numbers.
Mnemonic: Think of it as cutting the 'tail' short — curtail means to trim something down before it fully finishes.
Deduce (verb) To reach a conclusion through logical reasoning, based on facts or evidence already known.
Example: From the footprints in the snow, the detective deduced that two people had left the house.
Mnemonic: 'De-' (down) plus a root meaning to lead, as in conduct — you lead your reasoning down to one conclusion.
Deficient (adjective) Lacking a necessary quality, amount, or ingredient to be considered complete or adequate.
Example: Blood tests showed the patient was deficient in vitamin D after a long winter indoors.
Mnemonic: Shares its root with 'deficit' — being deficient means running a deficit, having less than what's needed.