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Definition of compost

compost

/ˈkɑːmpoʊst/
com · post

Plural:composts
•
Adjective:compostable
•
Past Simple:composted
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Past Participle:composted
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Present Participle:composting
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compost Lexical Profile

compost Game Scores & Validity

• noun

1

Decayed organic material, such as dead leaves, food scraps, and manure, used as a plant fertilizer and soil conditioner.

Example

"She mixed a generous layer of rich garden compost into the vegetable beds before planting the tomatoes."


2

British A prepared mixture of soil, peat, or other growing mediums with fertilizer, used for potting plants or germinating seeds.

Example

"Fill the seed trays with a fine, moisture-retentive potting compost."

Synonyms
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• verb

1

To convert organic waste, such as plant matter or kitchen scraps, into nutrient-rich soil amendment through controlled decomposition.

Example

"The city encourages residents to compost their fruit and vegetable peelings rather than sending them to the landfill."


2

To treat or enrich soil or plants with decayed organic matter.

Example

"We always compost the rose bushes in early spring to promote healthy blooms."

Synonyms
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Word Origin & Etymology

From Middle English compost, borrowed from Old French composte ('mixture, pickled preserves'), from Latin composita ('things put together'), the neuter plural past participle of componere ('to put together').

Cite this Entry


Wordmom. (2026). Definition of Compost. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/compost
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