To prolong something is to make it last longer. You can prolong the life of a battery by keeping it cool or by charging it slowly.

  • The company is prolonging the life of the batteries by keeping them cool.

  • The politician is prolonging the life of the treaty by talking to the other side.

Definition of prolonging


To extend in space or length.


To lengthen in time; to extend the duration of


draw out


To put off to a distant time; to postpone.


To become longer; lengthen.



Nearby Words

Example Sentences for prolonging

  • 1

    It was the prolongation of the Great Depression.

  • 2

    Shooting of the film was prolonged.

  • 3

    The ovations were prolonged.

  • 4

    This is due to prolongation of the interval.

  • 5

    Monetary tightening may prolong.

  • 6

    The initial success of the play was not prolonged.

  • 7

    The jet prolongation of is the map defined by.

  • 8

    The prolongation of a occupation does not legitimise it.

  • 9

    The result was the infinite prolongation of the sound.

  • 10

    The road was prolonged to Larache in 1996.