infantry

noun

in·​fan·​try ˈin-fən-trē How to pronounce infantry (audio)
plural infantries
1
a
: soldiers trained, armed, and equipped to fight on foot
b
: a branch of an army composed of these soldiers
2
: an infantry regiment or division

Did you know?

The Italian word fante (from Latin infans, “infant, child”) originally meant “child,” later “youth, boy,” and then “servant.” In the 14th century, fante also took on the sense “foot soldier.” In Renaissance times, the fanteria, foot soldiers collectively, became a significant branch of arms, and the Italian word infanteria, was borrowed into English in the 1500s.

Examples of infantry in a Sentence

He joined the infantry after leaving school.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Joe Frigo started off his career as an infantry assaultman in the United States Marine Corps. Jennifer Pierce, USA Today, 20 Apr. 2025 The first wave of Russian vehicles was reportedly destroyed 8 kilometers from the frontline, with three infantry fighting vehicles taken out early in the battle. Thomas G. Moukawsher, MSNBC Newsweek, 17 Apr. 2025 Green Berets are training alongside Mexico’s elite marine infantry units in conventional and nonconventional combat techniques. Risa Brooks, Foreign Affairs, 8 Apr. 2025 Throughout his career, Hartman has worked in infantry, military intelligence and as a Cyberspace Operations Officer with assignments in the U.S., Italy, Germany, the Republic of Korea, Iraq, Afghanistan and Turkey. Ashleigh Fields, The Hill, 5 Apr. 2025 See All Example Sentences for infantry

Word History

Etymology

Middle French & Old Italian; Middle French infanterie, from Old Italian infanteria, from infante boy, foot soldier, from Latin infant-, infans

First Known Use

1579, in the meaning defined at sense 1a

Time Traveler
The first known use of infantry was in 1579

Browse Nearby Words

Cite this Entry

“Infantry.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infantry. Accessed 24 Apr. 2025.

Kids Definition

infantry

noun
in·​fan·​try ˈin-fən-trē How to pronounce infantry (audio)
plural infantries
: a branch of an army made up of soldiers trained, armed, and equipped to fight on foot
Etymology

from early French infanterie and early Italian infanteria, both meaning "infantry," from early Italian infante "infant, boy, foot soldier," from Latin infans "infant"

Word Origin
In the Middle Ages in France, a young soldier from a good family who was not yet a knight was called enfant, which means "child." Likewise, in Italy a soldier moving on foot behind a knight riding a horse was an infante. Later, Italian foot soldiers as a group became known as infanteria, which was borrowed into French as infanterie and into English as infantry.
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!