winking vs reflex action

winking and reflex action both are nouns.

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

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

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

winking (adjective)	reflex action (adjective)
closing the eyes intermittently and rapidly