1 to stop: arrèter le ballon! stop the ball ! : arrèter! stop it! : il n’arrète pas de tousser/de critiquerhe doesn’t stop coughing/criticizing, he’s always coughing/criticizing : arrète de te plaindre! stop complaining!
2 to switch off (a machine): arrète le moteurl switch off the engine!
3 to arrest (a crimind): l’assassin a ètè arrète the murderer was arrested