wax crayon vs crayon

wax crayon and crayon both are nouns.

Word	Noun	Adjective	Verb	Adverb
wax crayon	Yes	No	No	No
crayon	Yes	No	Yes	No

As nouns, wax crayon and crayon are synonyms defined as:

wax crayon and crayon: writing implement consisting of a colored stick of composition wax used for writing and drawing

wax crayon (noun)	crayon (noun)
writing implement consisting of a colored stick of composition wax used for writing and drawing	writing implement consisting of a colored stick of composition wax used for writing and drawing

wax crayon (verb)	crayon (verb)
	write, draw, or trace with a crayon