Sailors meaning : A person in the business of navigating ships or other vessels Someone knowledgeable in the practical management of ships. A member of the crew of a vessel; a mariner; a common seaman. A person who sails sailing boats as a sport or recreation. Any of various nymphalid butterflies of the genera Neptis, Pseudoneptis and Phaedyma, having white markings on a dark base and commonly flying by gliding.