become vs add up

become and add up both are verbs.

Word	Noun	Adjective	Verb	Adverb
become	No	No	Yes	No
add up	No	No	Yes	No

As verbs, add up is a hyponym of become; that is, add up is a word with a more specific, narrower meaning than become:

Other hyponyms of become include boil down, come down, reduce, choke, suffocate, nucleate, amount, come.

become (verb)	add up (verb)
enter or assume a certain state or condition	determine the sum of
come into existence	be reasonable or logical or comprehensible
undergo a change or development	to measure up to in kind or quality
enhance the appearance of	add up in number or quantity