Mr. Roget's Invaluable Book

This page is the CodyCross answer for the clue below from Seasons, Group 69, Puzzle 4 (Homemade Stew).

Question is: Mr. Roget's Invaluable Book

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.