lifetime - definition and synonyms

noun [countable] [usually singular] 

Your browser doesn’t support HTML5 audio

  1. 1
    the period of time when someone is alive

    He achieved a lot in his short lifetime.

    There have been many changes during my lifetime.

    A cure for cancer could be found within our children’s lifetime.

  2. 2
    the length of time that something exists or works

    plans to extend the lifetime of the power station

    We aim to halve unemployment within the lifetime of this government.