Anschluss
addition
affiliation
agglomeration
agglutination
aggregation
agreement
alignment
alliance
amalgamation
articulation
assimilation
association
blend
blending
bond
bracketing
cabal
cahoots
cartel
centralization
circuit
clustering
coadunation
coalescence
coalition
coast-to-coast hookup
colleagueship
collegialism
collegiality
combination
combine
combo
communication
composition
comradeship
concatenation
concourse
concurrence
confederacy
confederation
confluence
confraternity
congeries
conglomeration
conjugation
conjunction
connection
consolidation
conspiracy
connecter
connective
connector
connexion
system
hookups
hook up
arcing
downlink
earpiece
eductor
firefighting
hook-up
interfacing
piture
stimulators
switchboard