crewman

As nouns the difference between crewman and seaman

is that crewman is a member of a crew, especially the crew of a ship while seaman is a mariner or sailor, one who mans a ship. Opposed to landman or landsman.

As nouns the difference between crewman and crewmen

is that crewman is a member of a crew, especially the crew of a ship while crewmen is .

As nouns the difference between taxonomy and crewman

is that taxonomy is the science or the technique used to make a classification while crewman is a member of a crew, especially the crew of a ship.

As nouns the difference between crewman and private

is that crewman is a member of a crew, especially the crew of a ship while private is the lowest rank of the army.

As an adjective private is

belonging to, concerning, or accessible only to an individual person or a specific group.

As nouns the difference between sailor and crewman

is that sailor is one who follows the business of navigating ships or other vessels; one who understands the practical management of ships; one of the crew of a vessel; a mariner; a common seaman while crewman is a member of a crew, especially the crew of a ship.