add

Synonyms: calculate cast compute count count up do addition enumerate figure reckon reckon up sum summate tally tot total tote tot up

Antonyms: subtract

Synonyms: affix annex ante append augment beef up boost build up charge up continue cue in figure in flesh out heat up hike hike up hitch on hook on hook up with include jack up jazz up join together pad parlay piggyback plug into pour it on reply run up say further slap on snowball soup up speed up spike step up supplement sweeten tack on tag

Antonyms: decrease deduct diminish lessen reduce remove withdraw