expeditionary
adjective
ex·pe·di·tion·ary
ˌek-spə-ˈdi-shə-ˌner-ē 
: of, relating to, or being an expedition
also
: sent on military service abroad
an expeditionary force
Examples of expeditionary in a Sentence
Recent Examples on the Web
On Friday, the Pentagon announced that an additional expeditionary unit of 2,500 Marines was being deployed to the region to support the effort.
—
Los Angeles Times, 15 Mar. 2026
For the first time, the US Air Force conducted the hot-pit refueling operation using an R-20 expeditionary refueling system.
—Prabhat Ranjan Mishra, Interesting Engineering, 5 Jan. 2026
The Marine Corps’ expeditionary field kitchen – a 20-foot container with an expandable structure and tents – feeds 750.
—Gidget Fuentes, USA Today, 5 Jan. 2026
Eventually a 25,000-strong expeditionary force of Brazilian ground and air units arrived in Italy to fight in the U.S. Fifth Army commanded by Gen. Mark Clark.
—Edward Lotterman, Twin Cities, 28 Dec. 2025
See All Example Sentences for expeditionary
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Los Angeles Times, 15 Mar. 2026
For the first time, the US Air Force conducted the hot-pit refueling operation using an R-20 expeditionary refueling system.
—Prabhat Ranjan Mishra, Interesting Engineering, 5 Jan. 2026
The Marine Corps’ expeditionary field kitchen – a 20-foot container with an expandable structure and tents – feeds 750.
—Gidget Fuentes, USA Today, 5 Jan. 2026
Eventually a 25,000-strong expeditionary force of Brazilian ground and air units arrived in Italy to fight in the U.S. Fifth Army commanded by Gen. Mark Clark.
—Edward Lotterman, Twin Cities, 28 Dec. 2025
See All Example Sentences for expeditionary
Cite this Entry
“Expeditionary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expeditionary. Accessed 22 Mar. 2026.
Copy CitationKids Definition
expeditionary
adjective
ex·pe·di·tion·ary
ek-spə-ˈdish-ə-ˌner-ē
: sent on military service abroad
an expeditionary force
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