Simple past tense and past participle of punch.(verb)
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Use "punched" in a sentence
"The best part is that Buzz Aldrin punched the guy when he tried to interview him."
"(And please keep in mind that your opinion of whether a suspected terrorist did or did not deserve to be punched is a completely seperate matter from how torture is defined.) -2 Good Comment?"
"Four plays later, Torain punched in a one-yard score - his third touchdown of the season and fourth of his career."