wink vs twinkle

wink and twinkle both are nouns.

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

As verbs, wink and twinkle are synonyms defined as:

Other synonyms of wink include blink, flash, winkle.

wink (noun)	twinkle (noun)
a reflex that closes and opens the eyes rapidly	merriment expressed by a brightness or gleam or animation of countenance
closing one eye quickly as a signal	a rapid change in brightness; a brief spark or flash
a very short time (as the time it takes the eye to blink or the heart to beat)

wink (verb)	twinkle (verb)
briefly shut the eyes	gleam or glow intermittently
keep back by blinking	emit or reflect light in a flickering manner
signal by winking
gleam or glow intermittently