Simple past tense and past participle of change.(verb)
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Use "changed" in a sentence
" The world has changed but things in Washington have not changed and this has led to an assault on the American dream."
"Canterbury be diminished or changed, in present or _future times_, which was appointed by our predecessor Pope Gregory, _however human circumstances may be changed_: but more especially by the authority of"
"Of course every one changes in opinion between twenty and thirty; doubtless, I have changed; yet I am not conscious that I have so much _changed_, as made up my mind on points on which I had no opinion."