The Woxikon synonym database assists you in finding different words with the same or similar meaning, often called synonyms, as well as finding antonyms to express the opposite sense of a word.
Synonymy is defined as a similarity in meaning, lexical resemblance and equality of two words. Therefore, words are synonyms if they have a similar or even same sense. Deriving from ancient Greek, the translation of the word "συνώνυμος" means "same-named".
Synonyms for the word "synonym" itself are synonymous, synonymic, synonymical, related in sense/meaning, corresponding, conterminous/conterminously and tantamount.
In linguistics, antonymy describes words with principally opposite meanings. It consists of the Greek syllables "anti" meaning against and "onoma" meaning name. Antonymy denotes general contrarieties of two or more meanings occuring either as words, word groups or whole sentences. Antonyms are lexically defined by logical conclusions of issues. In other words, the majority of antonyms (like hot and cold) originate in the rules of logic.
Synonyms for the word "antonym" are antonymous, converse, oppositional/opposite, conflictive, anticlimax, antithesis, inversion, adverse word.