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Meaning of “drug” in the English Dictionary

"drug" in British English

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drugnoun [C]

uk   /drʌɡ/  us   /drʌɡ/
  • drug noun [C] (MEDICINE)

B2 any natural or artificially made chemical that is used as a medicine: anti-cancer/fertility/pain-killing drugs a prescription drug drug therapy He takes several drugs for his condition.

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  • drug noun [C] (ILLEGAL SUBSTANCE)

B2 any natural or artificially made chemical that is taken for pleasure, to improve someone's performance of an activity, or because a person cannot stop using it: illegal drugs a drug addict drug addiction/abuse She began to suspect that her son was on/taking/doing drugs. She was suspected of being a drug dealer. His son died of a drug overdose.
any activity that you cannot stop doing: Work is a drug for him.

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drugverb [T]

uk   /drʌɡ/  us   /drʌɡ/ (-gg-)
to give a person or animal a chemical that causes him, her, or it to lose feeling or become unconscious: The killer confessed that he often drugged his victims before he killed them. She was heavily drugged to ease the pain.UK informal We visited her in hospital but she was drugged to the eyeballs (= had been given a lot of drugs) and I don't think she even knew we were there.
(Definition of drug from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"drug" in American English

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drugnoun

 us   /drʌɡ/
  • drug noun (MEDICINE)

[C] any chemical that is used as a medicine: over-the-counter/prescription drugs
  • drug noun (ILLEGAL SUBSTANCE)

[C/U] a chemical or other substance that is illegally used, sometimes to improve performance in an activity or because a person cannot stop using it

drugverb [T]

 us   /drʌɡ/ (-gg-)
  • drug verb [T] (GIVE MEDICINE)

to give a person or animal a chemical that causes a loss of feeling or the condition of being unconscious: He couldn’t talk to us because he had been drugged.
(Definition of drug from the Cambridge Academic Content Dictionary © Cambridge University Press)

"drug" in Business English

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drugnoun [C]

uk   us   /drʌɡ/
a natural or artificially made substance that is used as a medicine: an anti-cancer drug The state is grappling for ways to curb rising drug costs in its $1 billion Medicaid drug budget.
a natural or artificially made substance, especially one that is illegal, which is taken for pleasure, to improve performance in an activity, or because someone is addicted (= cannot stop taking it): a banned/illegal drugtake/abuse drugs He admitted abusing drugs and alcohol his entire adult life before ending up in jail.
(Definition of drug from the Cambridge Business English Dictionary © Cambridge University Press)
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“drug” in Business English

A bunch of stuff about plurals
A bunch of stuff about plurals
by ,
May 24, 2016
by Colin McIntosh One of the many ways in which English differs from other languages is its use of uncountable nouns to talk about collections of objects: as well as never being used in the plural, they’re never used with a or an. Examples are furniture (plural in German and many other languages), cutlery (plural in Italian), and

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