operative: meaning and definitions

Being in effect; having force; operating: "Two major tendencies are operative in the American political system” ( Heinz Eulau).

Functioning effectively; efficient.

Engaged in or concerned with physical or mechanical activity.

Of, relating to, or resulting from a surgical operation.

Significant; most important; key: The operative word is "low-fat.”

A skilled worker, especially in industry.

A secret agent; a spy.

A private investigator.

One who works for a political organization, often wielding influence out of public view.