onto or in the direction of the shore
from a body of water: a breeze blowing onshore.
in or on
a body of water, close to or parallel with the shore
: to sail a boat onshore.
land, especially within the area adjoining a port; ashore: to land and shop onshore.
moving or proceeding toward shore
or onto land from a body of water: an onshore breeze.
or close to the shore
: an onshore lighthouse; an onshore buoy.
done or taking place on
land: onshore liberty for the crew.