1
as in interim
intended to last, continue, or serve for a limited time
will serve as the ad interim CEO until the merger of the two corporations is complete
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2
as in acting
serving in a position for the time being
an ad interim government until the new constitution goes into effect
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Recent Examples of ad interim
Lorenzo de Zavala helped draft the constitution of the Republic of Texas, and his fellow delegates elected him ad interim vice president of the new country.
—
USA Today, 28 Sep. 2021
Other members of the U.S. delegation, according to the White House, include Raymond Greene, the Chargé d’Affaires ad interim at the U.S. Embassy in Tokyo, and Marcia Bernicat, senior official for economic growth, energy as well as the environment.
—Melissa Locker, Time, 4 Aug. 2021
The US Embassy in Seoul also lowered flags to honor the shooting victims, Chargé d'Affaires ad interim Rob Rapson said on Twitter.
—Madeline Holcombe, CNN, 19 Mar. 2021
Shawn Morgan will replace him on an ad interim basis for North America.
—Phoebe Wall Howard, Detroit Free Press, 11 June 2020
USA Today, 28 Sep. 2021
Other members of the U.S. delegation, according to the White House, include Raymond Greene, the Chargé d’Affaires ad interim at the U.S. Embassy in Tokyo, and Marcia Bernicat, senior official for economic growth, energy as well as the environment.
—Melissa Locker, Time, 4 Aug. 2021
The US Embassy in Seoul also lowered flags to honor the shooting victims, Chargé d'Affaires ad interim Rob Rapson said on Twitter.
—Madeline Holcombe, CNN, 19 Mar. 2021
Shawn Morgan will replace him on an ad interim basis for North America.
—Phoebe Wall Howard, Detroit Free Press, 11 June 2020
Recent Examples of Synonyms for ad interim
Adjective
-
Beere began serving as the interim chief in November, following Chief Floyd Mitchell’s abrupt resignation weeks earlier.—
Shomik Mukherjee,
Mercury News,
8 Jan. 2026
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In moving Baker to the budget office, Levine Cava also named Lydia Lopez, an assistant library director, as his interim replacement.—
Douglas Hanks,
Miami Herald,
7 Jan. 2026
Adjective
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The forthcoming Olympics in Los Angeles will only use existing or temporary stadiums, in the hope of minimizing the environmental impact of new construction.—
Oscar Holland,
CNN Money,
7 Jan. 2026
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While the temporary jail facility will not be subject to the city ordinance requiring the standard, the permanent facility that is also planned will be.—
Ben Wheeler,
Kansas City Star,
7 Jan. 2026
Cite this Entry
“Ad interim.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ad%20interim. Accessed 8 Jan. 2026.
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