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42,394 words to explore
1,392 words
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core
The central part of something important or essential.
correlation
A relationship between two or more things.
cost an arm and a leg
To be extremely expensive.
couldn't be better
Used to say that something is going extremely well.
counselor
A person who gives advice or guidance.
count for
To have a certain amount of value or importance.
count on
To depend on someone or something to help or happen.
count out
To not include someone in a plan or activity.
counterargument
A reason given to show that another argument is wrong or weak.
county
A specific area within a state.
coupon
A voucher for discounts on purchases.
coursework
Assignments and projects for a course.
coverage
The reporting of an event by newspapers, television, or other media.
crater
a large, bowl-shaped hole in the ground.
credential
A document proving a person's qualifications.
credit
A unit given for completing a course, counted toward a degree.
credulous
Too ready to believe what people tell you.
critically
In a way that expresses careful judgment.
crude oil
Oil in its natural state, taken from the ground before it is processed.
crust
hard outer surface of a planet
cubism
An early 1900s art style showing objects as broken, geometric shapes from many angles.
current
flow of electricity or water
curriculum
a set of courses offered by a school
cut class
To stay away from a lesson on purpose without a good reason.
Words selected by Inoh for the TOEFL iBT test. Not an official ETS list. How these words were chosen →