hook up (v.)
- affiliate
- ally
- amalgamate
- associate
- band
- bridle
- bunch
- cabal
- centralize
- club
- coact
- coalesce
- collaborate
- collude
- combine
- concert
- concord
- concur
- confederate
- consociate
- consolidate
- conspire
- cooperate
- couple
- federalize
- federate
- fetter
- fuse
- gang
- halter
- harmonize
- harness
- join
- league
- marry
- merge
- organize
- pair
- partner
- reciprocate
- saddle
- tether
- unionize
- unite
- wed
- yoke
