act on

See also: acton and Acton

English

act on (third-person singular simple present acts on, present participle acting on, simple past and past participle acted on)

To act decisively on the basis of information received or deduced.
The policeman decided to act on the tip from his informant.
To act accordingly to a (usually sublimated) desire or impulse.
He keeps telling me about wanting to make a move, but he hasn't worked up to acting on it yet.
To take action against something.
World leaders have repeatedly stated that we must act on climate change.
(medicine) To affect something.
Different drugs act on different parts of our body in many different ways.

act decisively

take initiative

address an issue

(medicine) affect