A word that expresses action and tells what the subject of a sentence does.

(cinematography) The traditional cue to the members of a film crew at the beginning of a take.

Able to be acted, as by an actor.

To act; to act positively and decisively to resolve a problem.

(physiology) A short-term change in the electrical potential that travels along a cell such as a nerve or muscle fiber.

A type of firearm action in which the weapon's bolt is operated manually by the opening and closing of the breech with a small handle, most commonly placed on the right-hand side of the weapon.

plural of actant

(management) The risk of employees spending significant effort looking busy with an activity at the expense of measuring progress toward what the activity is ultimately supposed to achieve.

(military) A state in which person in the military performs military duties on a full-time basis, as opposed to reserve, where one only occasionally performs military duties.

The process of attending carefully to what a speaker is saying, involving such techniques as accurately paraphrasing the speaker's remarks.