This meaning refers to communicating ideas, emotions, or identity through words, actions, or art.
Art is a powerful form of personal expression.
Freedom of expression is protected by law.
This meaning describes the appearance of the face as it communicates a feeling or reaction.
Her expression changed when she heard the news.
He had a worried expression on his face.
This meaning refers to a particular word, phrase, or saying used to communicate an idea.
That expression is common in everyday English.
The phrase is an old-fashioned expression.
In mathematics, an expression is a combination of values, variables, and operations without an equality sign.
Simplify the expression before solving the equation.
The expression contains two variables and a constant.