Definition of auld lang syne in US English:

auld lang syne


  • Times long past.

    • ‘Should auld acquaintance be forgot and days of auld lang syne?’
    • ‘Literally translated from Scottish dialect, the words auld lang syne mean old long since, or, in more familiar terms, days gone by.’


  • for auld lang syne

    • For old times' sake.

      • ‘But he is taking an uncharacteristic risk for the sake of auld lang syne.’
      • ‘For auld lang syne, my dear, for auld lang syne, we'll take a cup of kindness yet, for auld lang syne…’


Late 18th century: Scots (see auld, lang syne). The phrase was popularized as the title and refrain of a song by Robert Burns (1788).


auld lang syne

/ôld laNG ˈzīn/