twinkle vs wink

twinkle and wink both are nouns.

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

As verbs, twinkle and wink are synonyms defined as:

Other synonyms of twinkle include blink, flash, winkle.

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

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