Also found in: Thesaurus, Medical, Legal, Encyclopedia.
Related to synonymity: semanteme, antonymy


1. A word having the same or nearly the same meaning as another word or other words in a language.
2. A word or expression that serves as a figurative or symbolic substitute for another: "Romeo has become a synonym for any youthful lover" (Harry Levin).
3. Biology One of two or more scientific names that have been applied to the same species or other taxonomic group.

[Middle English sinonyme, from Old French synonyme, from Latin synōnymum, from Greek sunōnumon, from neuter of sunōnumos, synonymous; see synonymous.]

syn′o·nym′ic, syn′o·nym′i·cal adj.
syn′o·nym′i·ty n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.synonymity - the semantic relation that holds between two words that can (in a given context) express the same meaning
semantic relation - a relation between meanings
References in classic literature ?
The wave of rebellion swept over me in an instant, beginning with an heretical doubt as to the sanctity of the established order of things--that fetish which has ruled Pan-Americans for two centuries, and which is based upon a blind faith in the infallibility of the prescience of the long-dead framers of the articles of Pan-American federation--and ending in an adamantine determination to defend my honor and my life to the last ditch against the blind and senseless regulation which assumed the synonymity of misfortune and treason.
The real name of "Hocus Pocus" was William Vincent and this synonymity was first recorded by by J.
However for EAL/D learners this may simply cause more confusion if their synonymity is not made explicit.
The following analysis should show whether such synonymity is really the case.
Aczel challenges the synonymity of voice and instance, asserting in his 1998 article, "Hearing Voices in Narrative Texts," that Genette's concept of voice is limited because it does not establish how a narrator speaks and is thus "inherently deaf to qualitative factors such as tone and idiom" (468).
However, seeking answers to these questions takes us directly into a maze of etymology, synonymity, and definition.
maicropetala and that the name should be resurrected from synonymity under T.