pushing vs boost

pushing and boost both are nouns.

Word	Noun	Adjective	Verb	Adverb
pushing	Yes	No	No	No
boost	Yes	No	Yes	No

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

Other hyponyms of pushing include depression, jog, nudge, press, pressing, pressure, shove.

pushing (noun)	boost (noun)
the act of applying force in order to move something away	the act of giving hope or support to someone
	the act of giving a push
	an increase in cost

pushing (verb)	boost (verb)
	increase or raise
	give a boost to; be beneficial to
	push or shove upward, as if from below or behind
	increase
	contribute to the progress or growth of