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English definition of “grass”

grass

noun uk   /ɡrɑːs/ us    /ɡræs/

grass noun (PLANT)

A1 [U or C] a low, green plant that grows naturally over a lot of the Earth's surface, having groups of very thin leaves that grow close together in large numbers: a blade of grass cut the grass a vase of dried flowers and grasses (= different types of grass)Common plants [U] slang → cannabisSpecific types of drugDrugs - general wordsSpecific medicines and drugs

grass noun (PERSON)

[C] UK slang a person, usually a criminal, who tells the police about other criminals' activities
See also
People who reveal secrets and tell talesMiscellaneous criminals
(Definition of grass from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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