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English definition of “speak up”

speak up

verb phrasal verb with speak  /spik/ (past tense spoke  /spoʊk/, past participle spoken  /ˈspoʊ·kən/) us  

(TALK LOUD)

to speak louder: Speak up! We can’t hear you in the back.
(Definition of speak up phrasal verb, verb from the Cambridge Academic Content Dictionary © Cambridge University Press)
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