/ ˈkɒmpɒst; NAmE ˈkɑːmpoʊst/ noun , verb
■ noun
[ U , C ] a mixture of decayed plants, food, etc. that can be added to soil to help plants grow :
potting compost (= a mixture of soil and compost that you can buy to grow new plants in)
a compost heap (= a place in the garden where leaves, plants, etc. are piled, to make compost )
■ verb [ vn ]
1.
to make sth into compost
2.
to put compost on or in sth
••
WORD ORIGIN
late Middle English : from Old French composte , from Latin composita , compositum something put together, feminine and neuter past participle of componere .