require UK /ɹɪˈkwaɪə/US /ɹɪˈkwaɪɹ/ verb4 •to need something because without it a thing cannot be done or cannot workChronic pain is occasionally a sign of a very serious problem, like brain tumors, and can require surgery. — 1972 •To demand, to insist upon (having); to call for authoritatively."I am Miss Newbury," I announced, "and I require to be shown to my room immediately, if you please." — 1998 •To demand (of someone) to do something.It is required (of me) that I give evidence in court. •(no longer used) To ask (someone) for something; to request; to beseech.I requyre the in the name of god, that thou torment me nott. — 1526 formsrequired · requiring · requires · requireth · requirest