A
sailor,
seaman,
mariner, or
seafarer is a person who navigates
waterborne vessels or assists as a crewmember in their operation and maintenance. The term may be used for
British or
US Navy sailors, the latter especially when deployed ashore as
infantry.
The Bluejacket's Manual is the basic handbook for United States Navy personnel. 700,000 of the world's mariners come from the
Philippines, being the world's largest origin of seafarers.