battalion
Americannoun
-
Military. a ground force unit composed of a headquarters and two or more companies or similar units.
-
an army in battle array.
-
Often battalions. a large number of persons or things; force.
battalions of bureaucrats.
noun
-
a military unit comprised of three or more companies or formations of similar size
-
(usually plural) any large array
Other Word Forms
Etymology
Origin of battalion
1580–90; < Middle French bataillon < Italian battaglione large squadron of soldiers, equivalent to battagli ( a ) battalia ( def. ) + -one augmentative suffix
Explanation
A battalion is a unit of an army. One battalion usually consists of three or more companies and a headquarters. The word battalion sounds a lot like battle, and that's a clue to its meaning: battalions are groups engaged in a battle. Specifically, a battalion is a smaller segment of an army. Within a battalion, there will usually be a headquarters, as well as a few smaller units, which are called companies. The members of a battalion will work closely together, whether they are attacking an enemy or defending a base. Veterans always remember the other soldiers in their battalion.
Vocabulary lists containing battalion
Chains
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
This Week in Pop Culture: December 29, 2018 - January 4, 2019
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Code Talker
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
A well-regarded battalion commander in Yemen’s armed forces, Ashaal, then 42, worked a sideline in real estate with a partner.
From Los Angeles Times • Mar. 30, 2026
Kwara State Governor AbdulRahman AbdulRazaq, who visited the area on Wednesday night, said President Bola Tinubu had approved the immediate deployment of an army battalion to respond to the attack.
From BBC • Feb. 6, 2026
The attack prompted Tinubu to order the deployment of a battalion in the remote village.
From Barron's • Feb. 5, 2026
The sight of the full battalion brings grins to every passerby.
From Salon • Feb. 5, 2026
There were rumors that an NVA battalion was gathering.
From "Boots on the Ground: America's War in Vietnam" by Elizabeth Partridge
Definitions 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.
