Définitions
1.NounA certain degree of similarity between the meaning(s) of several (synonymous) words or phrases. (See Usage notes below.)
2.NounA list or collection of synonyms, often compared and contrasted.
3.NounThe use of synonyms to clarify or explain one's meaning.
4.NounThe study of synonyms.
5.NounA system of synonyms. (The addition of quotations indicative of this usage is being sought:)
6.NounThe state of not being the name to be used, of being a synonym."sink into synonymy; In 1924 this name was reduced to synonymy."
7.NounA group or list of synonyms."The synonymy of Tachina is extensive.; Descriptions are followed by a synonymy of the names that have been applied in the literature ."