Pronunciation: /ɪn ˈækʃən/
noun a person, place, thing, or idea that is involved in the action being described
A1 I saw a robot in action at the science fair.
A2 The new security system was put in action yesterday.
B1 The firefighters were in action as soon as the alarm sounded.
B2 The police officers sprang into action when they heard the gunshot.
C1 The emergency response team was in action within minutes of the disaster.
C2 The elite military unit went in action to rescue hostages from the terrorists.
adverb modifies a verb, adjective, or another adverb to describe how the action is being performed
A1 The robot was in action, cleaning the floor.
A2 The firefighters were in action, putting out the fire.
B1 The team was in action, implementing the new marketing strategy.
B2 The soldiers were in action, defending the country's borders.
C1 The orchestra was in action, performing a symphony for the audience.
C2 The scientists were in action, conducting experiments in the lab.
formal The new security system was put in action to protect the building.
informal I love watching superhero movies with all the cool fight scenes in action.
slang The dance crew was in action last night at the club, showing off their moves.
figurative When faced with a difficult decision, it's important to see all the options in action before choosing.
acted
in actions
more in action
most in action
is in action
will be in action
has been in action
is being in action
in action
very in action
to be in action
being in action
being in action