Pronunciation: (on'shôr', -shōr', ôn'-),[key] —adv. 1. onto or in the direction of the shore from a body of water: a breeze blowing onshore. 2. in or on a body of water, close to or parallel with the shore: to sail a boat onshore. 3. on land, esp. within the area adjoining a port; ashore: to land and shop onshore.
—adj. 1. moving or proceeding toward shore or onto land from a body of water: an onshore breeze. 2. located on or close to the shore: an onshore lighthouse; an onshore buoy. 3. done or taking place on land: onshore liberty for the crew.