battalion

noun

bat·​tal·​ion bə-ˈtal-yən 

1

: a considerable body of troops organized to act together : army

2

: a military unit composed of a headquarters and two or more companies, batteries, or similar units

3

: a large group

Synonyms of battalion

• army

Examples of battalion in a Sentence

a battalion of angry protesters

the nation's battalions were forced to fight on two fronts simultaneously

Recent Examples on the Web

Eventually, Patterson was joined by her husband, Lance Patterson, a former battalion chief at the Charlotte Fire Department. —Charlotte Observer, 5 Dec. 2025

Top-tier television used to entice movie stars with the promise of meaty roles and superlative writing; 2025 television enlists battalions of Oscar winners by waving around a script based on a mid-tier best seller and the prospect of a couple of months on location in Nantucket. —Sophie Gilbert, The Atlantic, 4 Dec. 2025

Despite efforts to secure that scene from oncoming traffic, a battalion chief’s car was hit by a driver who did not yield to first responders, officials said. —Lillie Davidson, Fort Worth Star-Telegram, 3 Dec. 2025

Firefighters quickly called more engines and battalions as the blaze grew. —Briauna Brown, CBS News, 3 Dec. 2025

Word History

Etymology

Middle French bataillon, from Old Italian battaglione, augmentative of battaglia company of soldiers, battle, from Late Latin battalia combat — more at battle entry 1

First Known Use

1579, in the meaning defined at sense 1

Rhymes for battalion

• italian
• medallion
• scallion
• stallion

Kids Definition

battalion

noun

bat·​tal·​ion bə-ˈtal-yən 

1

: a large body of troops : army

2

: a military unit composed of two or more smaller units (as companies or batteries)

3

: a large body of persons organized to act together