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
Senior Foreign Service, has been serving as the chargé d’affaires ad interim — essentially an acting ambassador when there is no one in the position — to South Korea since January.
—
Kaitlyn Schallhorn, Oc Register, 13 Apr. 2026
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
Kaitlyn Schallhorn, Oc Register, 13 Apr. 2026
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
Recent Examples of Synonyms for ad interim
Adjective
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Just look at previous interim head coaches Guus Hiddink (2009), Roberto Di Matteo (2012), and Rafael Benitez (2013).—
Simon Johnson,
New York Times,
27 Apr. 2026
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Double-A manager Chad Epperson will take over as interim third base coach and WooSox hitting coach Collin Hetzler has been elevated to the big league staff, but beyond that Breslow said more additions will be made and that Tracy will have a voice in assembling his new staff.—
Mac Cerullo,
Hartford Courant,
26 Apr. 2026
Adjective
-
The temporary supervised visitation (for one hour every other week) began in September 2024.—
Juliet Pennington,
PEOPLE,
24 Apr. 2026
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Doing this every few weeks can help apply updates and clear temporary issues that may affect performance or security.—
Kurt Knutsson,
FOXNews.com,
24 Apr. 2026
Cite this Entry
“Ad interim.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ad%20interim. Accessed 2 May. 2026.
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