关联

related / linked / affiliated

to be related; to be connected / relationship; connection

mountain pass / to close; to shut; to turn off / to confine; to lock (sb) up; to shut (sb in a room, a bird in a cage etc) / to concern; to involve

to ally / to unite / to join / (poetry) antithetical couplet

(grammar) a connective / a conjunction

related to / concerning / to be correlated

related company / affiliate