Expression and Set phrase

Expression noun - An act, process, or means of putting something into words.

Set phrase and expression are semantically related in idiom topic. In some cases you can use "Set phrase" instead a noun "Expression", when it comes to topics like verbalization.

Nearby Words: express, expressive, expressed, expressly, expressionless

Set phrase noun - An expression whose meanings cannot be inferred from the meanings of the words that make it up.

Expression and set phrase are semantically related in idiom topic. You can use "Expression" instead a noun phrase "Set phrase", if it concerns topics such as turn of phrase.