wince vs startle

wince and startle both are nouns.

Word	Noun	Adjective	Verb	Adverb
wince	Yes	No	Yes	No
startle	Yes	No	Yes	No

As nouns, startle is a hypernym of wince; that is, startle is a word with a broader meaning than wince:

Other hypernyms of wince include jump, start.

wince (noun)	startle (noun)
a reflex response to sudden pain	a sudden involuntary movement
the facial expression of sudden pain

wince (verb)	startle (verb)
make a face indicating disgust or dislike	to stimulate to action
draw back, as with fear or pain	move or jump suddenly, as if in surprise or alarm