dummy - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “dummy”

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dummy

noun [C]  us   /ˈdʌm·i/

dummy noun [C] (MODEL)

a large model of a human: They use crash-test dummies in order to improve safety equipment in cars.

dummy noun [C] (STUPID PERSON)

a stupid or silly person: Taxpayers are not dummies, and they are going to know how politicians are trying to fool them.

dummy

adjective [not gradable]  us   /ˈdʌm·i/

dummy adjective [not gradable] (NOT REAL)

not real but having a similar appearance to something else: They set up a dummy corporation to try to hide their identities.
(Definition of dummy from the Cambridge Academic Content Dictionary © Cambridge University Press)
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