船老大 Traditional form: 船老大 Pinyin (reading): chuánlǎodà Definitions: coxswain steersman boatswain (bo'sun) Characters: 船 - ship, boat, vessel 老 - old, aged; experienced 大 - big, great, vast, high, deep Traditional characters: 船 - ship, boat, vessel 老 - old, aged; experienced 大 - big, great, vast, high, deep