Synonym Reference Book
This page is the CodyCross answer for the clue below from Ancient Egypt, Group 181, Puzzle 4 (Incense and Oils).
Question is: Synonym Reference 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.