association (of ideas); being reminded (of something); suggestion
union; alliance; combination; RENGO (Japanese Trade Union Confederation)
relation; connection; relevance
contacting; (making) contact; connection (with a train, bus, etc.); joining (a railway line, etc.); connection (between matters, incidents, etc.); relation
league; federation; union; alliance
allied nations; the Allies (World War I, World War II); Allied powers
commonwealth; federation of states; confederation; union
connection; linking; linkage; link
couplet (Chinese poetry); pair of hanging scrolls
coalition; alliance; union; standing side-by-side
doing in unison; doing together