1. noun /ˈæk.ʃən/
Knead bread with a rocking action.
b) A way of motion or functioning.
an action movie
2. interjection /ˈæk.ʃən/
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.
3. verb /ˈæk.ʃən/
b) To initiate a legal action against someone.
Wikipedia foundation.