from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun grammar A common expression whose wording is not subject to variation.
  • noun grammar A common expression whose words cannot be replaced by synonymous words without compromising the meaning.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an expression whose meanings cannot be inferred from the meanings of the words that make it up


Sorry, no etymologies found.


Help support Wordnik (and make this page ad-free) by adopting the word set phrase.


    Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.