lock-gate

n gate on a canal or river lock （河流的）闸门.

local authority, local call, local colour, local government, local option, local time, locale, locality, localization, localisation, localize, localize, localise, locally, locate, located, location, loch, loci, lock, lock oneself in, lock out, lock-keeper, lock-nut, lock-out, lock-stitch, lock-up, lockable, locker, locker-room, locket, lockjaw, lockout, locksmith, loco, locomotion, locomotive, locum, locus, locus classicus, locust, locution,