Definition that contains nav
- compass navigational instrument for finding directions
- midway naval battle of World War II (June 1942); American planes based on land and on carriers decisively defeated a Japanese fleet on its way to invade the Midway Islands
- instrument flying navigation of an airplane solely by instruments
- depth finder navigational instrument used to measure the depth of a body of water (as by ultrasound or radar)
- bathyscaphe navigable deep diving vessel for underwater exploration
- sea-duty naval service aboard a ship at sea
- astronavigation navigating according to the positions of the stars
- sea power naval strength
- fire control system naval weaponry consisting of a system for controlling the delivery of fire on a military target
- naval radar naval equipment consisting of a shipboard radar