winking vs reflex

winking and reflex both are nouns.

Word	Noun	Adjective	Verb	Adverb
winking	Yes	Yes	No	No
reflex	Yes	Yes	No	No

As nouns, reflex is a hypernym of winking; that is, reflex is a word with a broader meaning than winking:

winking (noun)	reflex (noun)
a reflex that closes and opens the eyes rapidly	an automatic instinctive unlearned reaction to a stimulus

winking (adjective)	reflex (adjective)
closing the eyes intermittently and rapidly	without volition or conscious control