Simple past tense and past participle of prepare.(verb)
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Use "prepared" in a sentence
"The release was delayed while his label prepared new cover art, but not before it was pilloried on conservative talk shows."
""We note that the term 'prepared to take further action' can only mean quantitative easing 3," he added."
"By 1937, Cage created what he called the prepared piano, which is a method of altering the piano's tonal and percussive qualities by placing wood, metal or rubber objects on the piano strings."