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English definition of “fire back”

fire back

informal phrasal verb with fire     /faɪər/ verb [T] (UK also sack)
to quickly react to something that has been said or done: He fired back a letter that said he wasn't going to negotiate with the firm .fire back at sb The government fired back at critics with a report accusing its biggest trading partners of unfair trade practices .
(Definition of fire back from the Cambridge Business English Dictionary © Cambridge University Press)
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