moment vs twinkling

moment and twinkling both are nouns.

Word	Noun	Adjective	Verb	Adverb
moment	Yes	No	No	No
twinkling	Yes	Yes	No	No

As nouns, twinkling is a hyponym of moment; that is, twinkling is a word with a more specific, narrower meaning than moment:

moment: an indefinitely short time
twinkling: a very short time (as the time it takes the eye to blink or the heart to beat)

Other hyponyms of moment include blink of an eye, flash, heartbeat, instant, jiffy, New York minute, split second, trice, wink.

moment (noun)	twinkling (noun)
having important effects or influence	a very short time (as the time it takes the eye to blink or the heart to beat)
the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value
a turning force produced by an object acting at a distance (or a measure of that force)
a particular point in time
an indefinitely short time
at this time

moment (adjective)	twinkling (adjective)
	shining intermittently with a sparkling light