wince vs pull a face

wince is a noun but pull a face is not a noun.

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

As verbs, pull a face is a hypernym of wince; that is, pull a face is a word with a broader meaning than wince:

wince: make a face indicating disgust or dislike
pull a face: contort the face to indicate a certain mental or emotional state

Other hypernyms of wince include grimace, make a face.

wince (noun)	pull a face (noun)
a reflex response to sudden pain
the facial expression of sudden pain

wince (verb)	pull a face (verb)
make a face indicating disgust or dislike	contort the face to indicate a certain mental or emotional state
draw back, as with fear or pain