acˈtioner noun (slang)

A film or story which has plenty of action

acˈtionist noun

An activist

action committee or action group noun

Members of an organization who are chosen to take active measures

action figure noun

A toy consisting of a small model of a character from a film, television programme, comic, etc.

acˈtion-packed adjective

Full of exciting activity

action painting noun

An American version of tachism in which paint is dripped, spattered, smeared, etc onto the canvas

action plan or action sheet noun

A written plan detailing the various stages of a project and the length of time each will take

action point noun

An agreed point of action or procedure

action potential noun (medicine)

The voltage pulse(s), produced in a nerve by a stimulus or stimuli, which when rapidly repeated can lead in motor nerves to continuous muscular response

action radius noun

The distance a ship or aircraft can go without running out of fuel before reaching its base or starting-point again

action replay noun

On television, the repeating of a piece of film, eg the scoring of a goal in football, usu in slow motion

action spectrum noun (botany)

The relationship between the rate of a light-dependent physiological process (eg photosynthesis) and the wavelength of light

action stations plural noun

Posts to be manned during or preparatory to battle (often figurative)

acˈtion-taking noun (Shakespeare)

Resorting to law instead of resorting to fighting

a piece of the action (informal)

Participation in an enterprise, etc, often including a share in the profits

industrial action see under industry

out of action

1. Not working
2. Temporarily unfit to participate