The term "turnover" is also used to refer to a turnover on downs, when a team attempts to gain a first down or touchdown on a fourth down play (known as a fourth down conversion), but is unsuccessful. When this occurs, the opposing team automatically gains possession at the spot to which the ball was advanced at the end of the play, unless a penalty has occurred (every defensive penalty, if accepted, results either in an automatic first down or a replay of down). The team that has lost possession is not permitted any opportunity to advance the ball any further.