a crowd; a throng; a multitude or great number of persons.-a great number or large quantity of things not placed in a pile.-a pile or mass; a collection of things laid in a body, or thrown together so as to form an elevation; as, a heap of earth or stones.-to collect in great quantity; to amass; to lay up; to accumulate; -- usually with up; as, to heap up treasures.-to throw or lay in a heap; to make a heap of; to pile; as, to heap stones; -- often with up; as, to heap up earth; or with on; as, to heap on wood or coal.-to form or round into a heap, as in measuring; to fill (a measure) more than even full.