A reference of synonyms and antonyms is called a thesaurus.
synonyms and antonyms
There does not appear to be any antonyms for the word "reference." It has several synonyms, but there are no antonyms as some verbs and nouns do not have any.
The word is spelled thesaurus (a reference for synonyms and antonyms).
thesaurus
A book of synonyms and antonyms is called a thesaurus.
thesaurus
Thesorus
Thesaurus.
A dictionary of synonyms and antonyms is called a thesaurus.
They can be antonyms (opposite meanings), not synonyms.
it's called a thesaurus
A thesuarus