The Latin phrase ad interim (often shortened to ad int) literally means "in the time between" denotes the meaning of "in the meantime", "for an intervening time" or "temporarily" in the English language. It also refers to a diplomatic officer who acts in place of an ambassador, as in the term chargé d'affaires ad interim.
Examples from classic literature:
| “ | No; but she has become queen of Paris, ad interim. and since she could not venture at once to establish herself in the Palais Royal or the Tuileries, she is installed at the Hôtel de Ville, where she is on the point of giving an heir or an heiress to that dear duke.
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| “ | Ad interim, if I may be pardoned that expression, I shall give you this betel-box, which is highly valuable article and cost me two rupees only four years ago.
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The abbreviation a.i. is used in job titles. E.g. Director of Operations, a.i.