unity
agreement
alliance
assemble
association
business
challenge
colorful
company
concept
connect
connected
connecting
connection
cooperate
cooperation
creativity
game
group
hand
hold
incomplete
integration
join
joining
key
match
merger
merging
metaphor
missing
part
partner
partnership
piece
positive
problem
puzzle
solution
solve
solved
strategy
success
system
team
teamwork
together
toy
union
work