grimace vs communicate

grimace is a noun but communicate is not a noun.

Word	Noun	Adjective	Verb	Adverb
grimace	Yes	No	Yes	No
communicate	No	No	Yes	No

As verbs, communicate is a hypernym of grimace; that is, communicate is a word with a broader meaning than grimace:

Other hypernyms of grimace include intercommunicate.

grimace (noun)	communicate (noun)
a contorted facial expression

grimace (verb)	communicate (verb)
contort the face to indicate a certain mental or emotional state	transmit thoughts or feelings
	transmit information
	be in verbal contact; interchange information or ideas
	receive Communion, in the Catholic church
	administer Communion; in church
	join or connect
	transfer to another