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English definition of “sell out (something)”

sell out (something)

(DO FOR MONEY) phrasal verb with sell    /sel/ verb [I/T] (past tense and past participle sold  /soʊld/)
to give up support for a person or belief for money or personal advantage: He wouldn't sell out the cause to serve his own interests.
(Definition of sell out (something) (DO FOR MONEY) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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