The Latin phrase ad interim (abbr. ad int, literally `in the time between`) means `in the meantime` or `temporarily`. A diplomatic officer who acts in place of an ambassador is called chargé d`affaires ad interim. ==Examples== Examples from classic literature: The abbreviation a.i. is used in job titles. E.g. Director of Operations, a.i. ... Found on http://en.wikipedia.org/wiki/Ad_interim