The term 'aground' is used to describe a situation in which a vessel or other object is STUCK on the shore, rocks, or sand due to shallow water. It can also refer to a situation in which a vessel has been damaged by running into an underwater obstruction. The crossword solutions for this term are 'BEACHED' (7 letters), 'MAROONED' (8 letters), 'STUCK' (5 letters), 'foundered' (9 letters), 'stranded' (8 letters), and 'REEF' (4 letters). All of these words describe a situation in which something is STUCK on the shore, rocks, or sand due to shallow water. 'BEACHED' and 'MAROONED' both refer to a situation in which a vessel is STUCK on the shore, while 'STUCK' and 'stranded' refer to any object that is STUCK on the shore. 'Foundered' refers to a situation in which a vessel has been damaged by running into an underwater obstruction, and 'REEF' refers to an underwater obstruction that can cause a vessel to become aground.