Definition: to misfire, miss, fail, bungle, miscarry, mess up

• Fais attention ! Le fusil peut rater. – Be careful! The rifle could misfire.
• Elle a raté le train pour Paris. - She missed the train to Paris.
• Le project a raté parce que Paul n’y a pas contribué. - The project failed because Paul didn’t contribute to it.
• Tu as raté ta vie ! – You’ve messed up your life!

Related: un raté - failure, flop, misfiring (of a gun or motor)