wink vs winker

wink and winker both are nouns.

Word	Noun	Adjective	Verb	Adverb
wink	Yes	No	Yes	No
winker	Yes	No	No	No

wink (noun)	winker (noun)
a reflex that closes and opens the eyes rapidly	blind consisting of a leather eyepatch sewn to the side of the halter that prevents a horse from seeing something on either side
closing one eye quickly as a signal	a person who winks
a very short time (as the time it takes the eye to blink or the heart to beat)

wink (verb)	winker (verb)
briefly shut the eyes
keep back by blinking
signal by winking
gleam or glow intermittently