several things grouped together or considered as a whole

place or lay as if in a pile

arrange in stacks

press tightly together or cram

a heap of manure and vegetation and other organic residues that are decaying to become compost

a heap of dung or refuse

pile of discarded metal

a pile of sheaves of grain set on end in a field to dry; stalks of Indian corn set up in a field

pile of waste matter from coal mining etc