grimace vs pout

grimace and pout both are nouns.

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

As nouns, pout is a hyponym of grimace; that is, pout is a word with a more specific, narrower meaning than grimace:

Other hyponyms of grimace include moue, wry face.

As verbs, pout is a hyponym of grimace; that is, pout is a word with a more specific, narrower meaning than grimace:

Other hyponyms of grimace include squinch, squint, wince, smile, frown, glower, lour, lower, screw up, mop, mow.

grimace (noun)	pout (noun)
a contorted facial expression	catfish common in eastern United States
	marine eellike mostly bottom-dwelling fishes of northern seas
	a disdainful grimace

grimace (verb)	pout (verb)
contort the face to indicate a certain mental or emotional state	make a sad face and thrust out one's lower lip
	be in a huff and display one's displeasure