join together

boost continue include reply

affix annex ante append augment hike pad parlay piggyback snowball spike supplement sweeten tag

beef up build up charge up cue in figure in flesh out heat up hike up hitch on hook on hook up with jack up jazz up plug into pour it on run up say further slap on soup up speed up step up tack on

halt

decrease detach subtract

deduct diminish lessen reduce remove withdraw

admix alloy ally coalesce combine compound consolidate fuse incorporate integrate intermix meld merge mingle network pool unite

come together hook up with interface team up tie in tie up

disconnect disjoin divide part separate

collude conspire cooperate hook up participate

coact concert concur

be in cahoots cofunction come together coproduce do business with get-together give-and-take glue oneself to go partners hook on interface join forces join up with team up throw in together throw in with tie in work with

disagree divorce part

align confederate league organize unite

come together

divide separate