pull a face vs glower

pull a face is not a noun while glower is a noun.

Word	Noun	Adjective	Verb	Adverb
pull a face	No	No	Yes	No
glower	Yes	No	Yes	No

As verbs, glower is a hyponym of pull a face; that is, glower is a word with a more specific, narrower meaning than pull a face:

pull a face: contort the face to indicate a certain mental or emotional state
glower: look angry or sullen, wrinkle one's forehead, as if to signal disapproval

Other hyponyms of pull a face include squinch, squint, wince, smile, frown, lour, lower, screw up, mop, mow, pout.

pull a face (noun)	glower (noun)
	an angry stare

pull a face (verb)	glower (verb)
contort the face to indicate a certain mental or emotional state	look angry or sullen, wrinkle one's forehead, as if to signal disapproval
	look at with a fixed gaze