English edit

Alternative forms edit

Etymology edit

From up- +‎ gun.

Verb edit

up-gun (third-person singular simple present up-guns, present participle up-gunning, simple past and past participle up-gunned)

  1. (transitive) To equip with additional guns or more powerful guns.
    • 2001, David French, Raising Churchill's Army:
      Hitherto, up-gunning British tanks had been prevented because of a basic design parameter.