need for a particular purpose:three patients required operationsplease indicate how many tickets you require
make necessary:it would have required much research to produce a comprehensive list
specify as compulsory:the minimum car insurance required by law
[with object and infinitive] (of someone in authority) instruct or expect (someone) to do something:you will be required to attend for cross-examination
(require something of) regard an action, ability, or quality as due from (someone) by virtue of their position:the care and diligence required of him as a trustee
