suck in vs aspirate

suck in is not a noun while aspirate is a noun.

Word	Noun	Adjective	Verb	Adverb
suck in	No	No	Yes	No
aspirate	Yes	No	Yes	No

suck in (noun)	aspirate (noun)
	a consonant pronounced with aspiration
	a speech sound having as an obvious concomitant an audible puff of breath, as initial stop consonants or initial h -sounds.

suck in (verb)	aspirate (verb)
take up as if with a sponge	inhale (air, water, etc.)
draw in as if by suction	pronounce with aspiration; of stop sounds
attract by using an inexorable force, inducement, etc.	remove by suction