compost

US /ˈkɑːm.poʊst/
UK /ˈkɑːm.poʊst/
"compost" picture
1.

a mixture of decaying organic matter, such as leaves and manure, used to fertilize soil

:
She added a layer of compost to her vegetable garden.
The city encourages residents to make their own compost from kitchen scraps.
1.

make (vegetable matter or a place) into compost

:
We need to compost all the garden waste.
It's easy to compost your kitchen scraps.