moment vs pinpoint

moment and pinpoint both are nouns.

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

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

moment (noun)	pinpoint (noun)
having important effects or influence	the sharp point of a pin
the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value	a very small spot
a turning force produced by an object acting at a distance (or a measure of that force)	a very brief moment
a particular point in time
an indefinitely short time
at this time

moment (verb)	pinpoint (verb)
	locate exactly