Definitions

1. adjective

used or expressed in a way that is natural to a particular language or culture, especially because it is not literal

“The phrase ‘kick the bucket’ is an idiomatic expression that means to die.”

2. noun

an expression or phrase that has a figurative meaning that is different from the literal meaning of the individual words

“The idiomatic phrase ‘break a leg’ is often used to wish someone good luck.”

3. adverb

in a way that is typical of a particular language or culture

“The tourists spoke English idiomatically, but with a strong accent.”