Book or Website to Find Synonyms

This page is the CodyCross answer for the clue below from Extraordinary Creatures, Group 1598, Puzzle 3 (Dumbo Octopus).

Question is: Book or Website to Find Synonyms

and the answer is: THESAURUS

Word Meaning:

THESAURUS — A publication that provides synonyms (and sometimes antonyms and other semantic relations) for the words of a given language.

Definitions from Wiktionary.

Book or website to find synonyms — CodyCross Answer | CodyCross Solutions