plural of operativeness

(uncountable) The state or quality of being operative. / (countable) The result or product of being operative.

In an operative manner.

plural of operative

An employee or other worker with some particular function or skill. / A spy, secret agent, or detective. / A participant in an operation.

Effectual or important. / Functional, in working order. / Having the power of acting; hence, exerting force, physical or moral; active in the production of effects.

plural of oper

(Internet) A network operator on IRC.

(mathematics, logic) An operation on logical values that changes true to false, and false to true.

The extent to which a system or device is operable.