(noun, verb, interjection)


1. Demanding or signifying the start of something, usually an act or scene of a theatric performance.

- The director yelled ‘Action!’ before the camera started rolling.


1. something done (usually as opposed to something said)

- there were stories of murders and other unnatural actions

Definition categories: act, deed

2. the state of being active

- he is out of action

Similar word(s): activeness, activity

Definition categories: state

3. a military engagement

- he saw action in Korea

Definition categories: act

4. a process existing in or produced by nature (rather than by the intent of human beings)

- the action of natural forces

Similar word(s): activity

Definition categories: process

5. the series of events that form a plot

- his novels always have a lot of action

Definition categories: communication, plot

6. the trait of being active and energetic and forceful

- a man of action

Definition categories: attribute, drive

7. the operating part that transmits power to a mechanism

- the piano had a very stiff action

Definition categories: man–made, mechanism

8. a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong

Definition categories: act, proceeding, proceedings

9. an act by a government body or supranational organization

- recent federal action undermined the segregationist position

- the United Nations must have the power to propose and organize action without being hobbled by irrelevant issues

- the Union action of emancipating Southern slaves

Definition categories: act

10. the most important or interesting work or activity in a specific area or field

- the action is no longer in technology stocks but in municipal bonds

- gawkers always try to get as close to the action as possible

Definition categories: act, work

Sentences with action as a noun:

- Knead bread with a rocking action.

- an action movie

- a rifle action

- He saw some action in the Korean War.


1. institute legal proceedings against; file a suit against

- She actioned the company for discrimination

Similar word(s): litigate, process, sue

Definition categories: social, challenge

2. put in effect

- He actioned the operation

Similar word(s): accomplish, execute, fulfil, fulfill

Definition categories: creation, complete, finish, effect, effectuate