NOUN (1)

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


VERB (1)

1. convert to compost;
- Example: "compost organic debris"

The Collaborative International Dictionary of English v.0.48:

Compost \Com"post\, v. t.
   1. To manure with compost.
      [1913 Webster]

   2. To mingle, as different fertilizing substances, in a mass
      where they will decompose and form into a compost.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Compost \Com"post\ (?; 277), n. [OF. compost, fr. L. compositus,
   p. p. See Composite.]
   1. A mixture; a compound. [R.]
      [1913 Webster]

            A sad compost of more bitter than sweet. --Hammond.
      [1913 Webster]

   2. (Agric.) 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.
      [1913 Webster]

            And do not spread the compost on the weeds
            To make them ranker.                  --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

compost
    n 1: a mixture of decaying vegetation and manure; used as a
         fertilizer
    v 1: convert to compost; "compost organic debris"

Moby Thesaurus II by Grady Ward, 1.0:

25 Moby Thesaurus words for "compost":
   admixture, ammonia, castor-bean meal, commercial fertilizer,
   commixture, composite, compound, dressing, dung, enrichener,
   fertilizer, fusion, guano, immixture, interfusion, intermixture,
   manure, mix, muck, night soil, nitrate, nitrogen,
   organic fertilizer, phosphate, superphosphate