simple past tense and past participle of change
"She changed her mind after hearing the bad news."
In plain English: Changed means to make something different from what it was before.
"The weather changed quickly from sunny to rainy this afternoon."
Usage: Use "changed" to describe an action that happened in the past or to form the perfect tense of the verb change. It indicates that something was altered from its original state at a specific previous time.
made or become different in nature or form
"changed attitudes"
"changed styles of dress"
"a greatly changed country after the war"
made or become different in some respect
"he's an altered (or changed) man since his election to Congress"
Changed is the past tense and past participle of change, derived from Old French changer via Late Latin cambiare. The original meaning was to swap or exchange one thing for another.