expression

表情

感じていることや考えていることが表れる、顔の様子。

やさしい英語で： 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.

使い方： expression on someone’s face (There was a happy expression on her face.)

類義語： look

よく使う表現： facial expression, puzzled expression, expression on someone’s face, blank expression

表現、言い回し

何かを伝えるために使う単語や言葉のまとまり。

やさしい英語で： 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?

類義語： phrase, saying

よく使う表現： common expression, English expression, use an expression

慣用句、言い回し

個々の単語の意味とは異なる意味を持つことがある、よく使われる決まった表現。

やさしい英語で： 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.

類義語： idiom, saying

よく使う表現： idiomatic expression, common expression, colloquial expression

式、数式

値を表す数、または数・文字・記号のまとまり。

やさしい英語で： 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.

よく使う表現： algebraic expression, simplify an expression, evaluate an expression