amass vs pull in

amass and pull in both are verbs.

Word	Noun	Adjective	Verb	Adverb
amass	No	No	Yes	No
pull in	No	No	Yes	No

As verbs, pull in is a hyponym of amass; that is, pull in is a word with a more specific, narrower meaning than amass:

Other hyponyms of amass include run up, corral, collect, come up, scrape, scrape up, scratch, chunk, lump, bale, catch, fund, fund.

amass (verb)	pull in (verb)
increase in amount by collecting or gathering	direct toward itself or oneself by means of some psychological power or physical attributes
get or gather together	get or bring together
	of trains; move into (a station)
	earn on some commercial or business transaction; earn as salary or wages