expression

A look on your face that shows what you feel or think.

• Her expression was sad.
• A worried expression appeared on his face.
• Their expressions changed when they heard the news.

How to use it: expression on someone’s face (There was a happy expression on her face.)

Similar words: look

Common phrases: facial expression, puzzled expression, expression on someone’s face, blank expression

A word or group of words people use to say something.

• That is a common English expression.
• She taught me some useful expressions.
• What does this expression mean?

Similar words: phrase, saying

Common phrases: common expression, English expression, use an expression

A familiar phrase whose meaning may be different from the meanings of its separate words.

• My uncle uses many old expressions.
• That expression means you should be careful.
• Do not translate this expression word for word.

Similar words: idiom, saying

Common phrases: idiomatic expression, common expression, colloquial expression

A number or a group of numbers, letters, and signs that represents a value.

• Simplify the expression in brackets.
• This expression contains two variables.
• Both expressions have the same value.

Common phrases: algebraic expression, simplify an expression, evaluate an expression