Compost

A mixture; a compound.

A mixture for fertilizing land; esp., a composition of various substances (as muck, mold, lime, and stable manure) thoroughly mingled and decomposed, as in a compost heap.

To manure with compost.

To mingle, as different fertilizing substances, in a mass where they will decompose and form into a compost.

a mixture of decaying vegetation and manure; used as a fertilizer