Usage of the French Expression Tout àCoup

The  French expression  tout à   coup  (pronounced  too ta koo) means all of a sudden. It literally translates to all at (a) blow. Its  register  is normal. ​​Tout à   coup is a very common French expression which indicates that something happened abruptly and unexpectedly. Examples Sans dire un mot, elle a tout à   coup pris son sac et est partie.Without a word, she suddenly picked up her bag and left.Tout à   coup, jai perdu lappà ©tit.All of a sudden, I lost my appetite. Tout à   coup is often used interchangeably—though technically incorrectly—with the French expression tout dun coup.