expeditionary
Americanadjective
adjective
Other Word Forms
Etymology
Origin of expeditionary
First recorded in 1700–10; expedition + -ary
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
When the additional carrier strike group and Marine expeditionary unit arrive in theater, the U.S. will have more than two dozen Navy ships operating in the Middle East, according to a Navy official.
From The Wall Street Journal ● Oct. 24, 2026
On Friday, the Pentagon announced that an additional expeditionary unit of 2,500 Marines was being deployed to the region to support the effort.
From Los Angeles Times ● Mar. 15, 2026
Central Command, responsible for American forces in the Middle East, to move a Marine expeditionary group, among others, to the region, The Wall Street Journal previously reported.
From The Wall Street Journal ● Mar. 15, 2026
The United States Marines are the country’s elite shock troops and an expeditionary force that specializes in amphibious assaults.
From Salon ● Jun. 12, 2025
A British expeditionary force was about to sail across the English Channel and link up with French forces fighting in Belgium.
From "The War to End All Wars: World War I" by Russell Freedman
![]()
Random Word
Spin the wheel and learn a new word!
Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.