synonymy

The quality of being synonymous; equivalence of meaning.

Study and classification of synonyms.

A list, book, or system of synonyms.

A chronological list of the published scientific names that have been applied to a species.

The quality of being synonymous, or of expressing the same meaning by different words.

In rhetoric, a figure by which words of the same meaning are used to amplify a discourse.

A thing of the same name.

A system of synonyms; a collection of synonyms; also, the study of synonyms; the use of synonyms in expressing different shades of meaning; the discrimination of synonyms; especially, in natural history, the sifting of synonyms to determine the onyms.

The quality of being synonymous; sameness of meaning.

A system of synonyms.