| COOPERATED | • cooperated v. Simple past tense and past participle of cooperate. • coöperated v. Simple past tense and past participle of coöperate. • co-operated v. Simple past tense and past participle of cooperate. |
| COOPERATES | • cooperates v. Third-person singular simple present indicative form of cooperate. • coöperates v. Third-person singular simple present indicative form of coöperate. • co-operates v. Third-person singular simple present indicative form of co-operate. |
| COOPERATOR | • cooperator n. One who cooperates; an associate. • coöperator n. Alternative spelling of cooperator. • co-operator n. Alternative spelling of cooperator. |
| OPERATIONS | • operations n. Plural of operation. • OPERATION n. the act of operating. |
| OPERATISED | • operatised v. Simple past tense and past participle of operatise. • OPERATISE v. to turn a play etc. into an opera, also OPERATIZE. |
| OPERATISES | • operatises v. Third-person singular simple present indicative form of operatise. • OPERATISE v. to turn a play etc. into an opera, also OPERATIZE. |
| OPERATIVES | • operatives n. Plural of operative. • OPERATIVE n. a worker, esp. one with special skills. |
| OPERATIZED | • operatized v. Simple past tense and past participle of operatize. • OPERATIZE v. to turn a play etc. into an opera, also OPERATISE. |
| OPERATIZES | • operatizes v. Third-person singular simple present indicative form of operatize. • OPERATIZE v. to turn a play etc. into an opera, also OPERATISE. |
| REOPERATED | • reoperated v. Simple past tense and past participle of reoperate. • REOPERATE v. to operate again. |
| REOPERATES | • reoperates v. Third-person singular simple present indicative form of reoperate. • REOPERATE v. to operate again. |