The term MARITIME: ABBR. can be solved by the crossword solutions NAUT (4 letters) and NAV (3 letters). Maritime is a term used to describe activities related to the sea, such as shipping, navigation, fishing, and coastal trade. The abbreviation NAUT stands for nautical, which refers to the skills and knowledge related to navigation and sailing. NAV stands for navigation, which is the process of planning, recording, and controlling the movement of a ship or aircraft from one place to another.