synonymy

As a letter s

is the letter s with a.

As a noun synonymy is

(semantics) the quality of being synonymous; sameness of meaning.

As nouns the difference between synonymy and simile

is that synonymy is (semantics) the quality of being synonymous; sameness of meaning while simile is (l) (figure of speech in which one thing is compared to another).

As nouns the difference between paronymy and synonymy

is that paronymy is the quality of being paronymous while synonymy is (semantics) the quality of being synonymous; sameness of meaning.

As a noun synonymy

is (semantics) the quality of being synonymous; sameness of meaning.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between synonymy and tautology

is that synonymy is (semantics) the quality of being synonymous; sameness of meaning while tautology is (uncountable) redundant use of words.

In semantics terms the difference between homonymy and synonymy

is that homonymy is the property of being a homonym while synonymy is the quality of being synonymous; sameness of meaning.

As nouns the difference between synonymy and identity

is that synonymy is the quality of being synonymous; sameness of meaning while identity is sameness, identicalness; the quality or fact of (several specified things) being the same.

As nouns the difference between synonymy and identification

is that synonymy is (semantics) the quality of being synonymous; sameness of meaning while identification is the act of identifying, or proving to be the same.

As nouns the difference between synonymy and synonyma

is that synonymy is (semantics) the quality of being synonymous; sameness of meaning while synonyma is .