ground level ground·le·vel uncommon noun 1. the height of the ground on which something stands “the base of the tower was below grade” Synonymsgradeground level 2. the floor of a building that is at or nearest to the level of the ground around the building Synonymsground floorfirst floorground level Related words Word family grade Broader terms floorelevation WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
