(with reference to a ship) on or on to the bottom in shallow water: [as adverb]:the ships must slow to avoid running aground [as predic. adjective]:a cargo ship aground in the Pentland Firth
Origin:
Middle English (in the sense 'on the ground'): from a-2 'on' + ground1
aground in other Oxford dictionaries
Definition of aground in the US English dictionary
