1. (n.) The quality of being synonymous; sameness of meaning.

2. (n.) A system of synonyms.

3. (n.) A figure by which synonymous words are used to amplify a discourse.

agreement biographical dictionary chemical dictionary coequality coincidence congruence correspondence desk dictionary dialect dictionary dictionary dictionary of quotations electronics dictionary equality equivalence etymological dictionary foreign-language dictionary gazetteer general dictionary geological dictionary gloss glossary gradus homogeneity homoousia identity indistinguishability lexicon no difference nomenclator oneness onomasticon phrase book polyglot dictionary rhyming dictionary sameness science dictionary self-identity selfhood selfness selfsameness slang dictionary specialized dictionary synonym dictionary synonymity synonymousness thesaurus treasury of words unabridged dictionary unity vocabulary wordbook