come vs add up

come is a noun but add up is not a noun.

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

As verbs, come and add up are synonyms defined as:

Other synonyms of come include amount.

As verbs, come and add up are synonyms defined as:

Other synonyms of come include amount, number, total.

come (noun)	add up (noun)
the thick white fluid containing spermatozoa that is ejaculated by the male genital tract

come (verb)	add up (verb)
come to pass; arrive, as in due course	determine the sum of
be found or available	be reasonable or logical or comprehensible
reach or enter a state, relation, condition, use, or position	to measure up to in kind or quality
happen as a result	add up in number or quantity
have a certain priority
come to one's mind; suggest itself
move toward, travel toward something or somebody or approach something or somebody
be received
cover a certain distance
reach a destination; arrive by movement or progress
experience orgasm
come under, be classified or included
proceed or get along
extend or reach
to be the product or result
exist or occur in a certain point in a series
be a native of
to measure up to in kind or quality
add up in number or quantity
come forth
come from; be connected by a relationship of blood, for example