A "sea captain" refers to a person who is in command of a ship or boat that sails on the ocean or sea.
Sentences with «sea captain»
We stayed at an old sea captain's house and all the rooms were named after flowers. (theinspiredroom.net)
Her father was a stem Norwegian sea captain; her mother was Dutch and much more open in her thinking and attitudes than was her father. (religion-online.org)
Plus, you look like some sort of arctic sea captain. (shacknews.com)