add vs foot up

add and foot up both are verbs.

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

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

Other hyponyms of add include foot.

add (verb)	foot up (verb)
make an addition (to); join or combine or unite with others; increase the quality, quantity, size or scope of	add a column of numbers
make an addition by combining numbers
determine the sum of
state or say further
bestow a quality on
constitute an addition