inhalation vs gasp

inhalation and gasp both are nouns.

Word	Noun	Adjective	Verb	Adverb
inhalation	Yes	No	No	No
gasp	Yes	No	Yes	No

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

inhalation: the act of inhaling; the drawing in of air (or other gases) as in breathing
gasp: a short labored intake of breath with the mouth open

Other hyponyms of inhalation include pant, drag, puff, pull.

inhalation (noun)	gasp (noun)
the act of inhaling; the drawing in of air (or other gases) as in breathing	a short labored intake of breath with the mouth open
a medication to be taken by inhaling it

inhalation (verb)	gasp (verb)
	breathe noisily, as when one is exhausted