collusion

n. 勾结，串通

collectivist, collectivization, -isation, collectivize, -ise, collector, colleen, college, collegiate, collide, collie, collier, colliery, collision, collision course, collocate, collocation, colloquial, colloquialism, colloquially, colloquy, collude, collusive, collywobbles, colo-nialist, cologne, colon, colonel, colonial, colonialism, colonialist, colonist, colonization, -isation, colonize, colonize, colonise, colonnade, colonnaded, colony, color, color-blind, colorable, coloration,