change state (v)
turn (v)

Definition: undergo a transformation or a change of position or action
Example: We turned from Socialism to Capitalism. The people turned against the President when he stole the election.

turn (v)

Definition: move around an axis or a center
Example: The wheels are turning.

change by reversal (v)
reverse (v)
turn (v)

Definition: change to the contrary
Example: The trend was reversed. the tides turned against him. public opinion turned when it was revealed that the president had an affair with a White House intern.

initiate (v)
broach (v)

Definition: bring up a topic for discussion

turn (v)

Definition: change orientation or direction, also in the abstract sense
Example: Turn towards me. The mugger turned and fled before I could see his face. She turned from herself and learned to listen to others' needs.