neologism

Noun

neologism (countable and uncountable, plural neologisms)

1. (countable) A word or phrase which has recently been coined; a new word or phrase.
   • These neologisms demonstrate the cumulative quality of language, in which we use the known to describe the unknown.2015 July 15, Roc Morin, “How to Say Everything in a Hundred-Word Language”, in The Atlantic, archived from the original on 03 Feb 2017

   Synonyms:

   coinage, neoterism

2. (broadly, countable) An existing word or phrase which has gained a new meaning.
3. (uncountable) The act or instance of coining, or uttering a new word.
   • Neologizing, the practice of coining new words, may seem to be an arcane, specialized activity, but it's everywhere -- and the skillful employment of neologism is what gives English much of its verve.2002 August 25, Erin McKean, “THE WAY WE LIVE NOW: 8-25-02: ON LANGUAGE; Neologist”, in The New York Times, archived from the original on 23 Mar 2021
4. The newly coined, meaningless words or phrases of someone with a psychosis, usually schizophrenia.
5. (historical) Synonym of neology.

   Synonyms:

   neology