bayonet
Americannoun
-
a daggerlike steel weapon that is attached to or at the muzzle of a gun and used for stabbing or slashing in hand-to-hand combat.
-
a pin projecting from the side of an object, as the base of a flashbulb or camera lens, for securing the object in a bayonet socket.
verb (used with object)
noun
-
a blade that can be attached to the muzzle of a rifle for stabbing in close combat
-
a type of fastening in which a cylindrical member is inserted into a socket against spring pressure and turned so that pins on its side engage in slots in the socket
verb
Etymology
Origin of bayonet
1605–15; < French baïonnette, after Bayonne in France (where the weapon was first made or used); see -ette
Explanation
A bayonet is a knife attached to the end of a rifle. This makes the rifle capable of even more violence than before. This handy extension to the business end of a rifle gets its name from the French city of Bayonne. It's thought to have developed when French peasantry ran out of ammo and stuffed their knives into the muzzles of their muskets. A bayonet makes the rifle more versatile: besides shooting people at a distance, it's now more deadly in hand to hand combat. With a bayonet, you've got a gun and knife in one package.
Vocabulary lists containing bayonet
The American Civil War
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!
Prisoner B-3087
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!
"Shooting an Elephant" by George Orwell
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.
Miller “soon put the enemy to flight at the point of a bayonet, capturing their colors and most of their arms,” Mr. Hemming writes, quoting Cochrane’s 1859 autobiography.
From The Wall Street Journal • Apr. 17, 2026
In fact, the French more or less conquered Southern California, not by the bayonet but by the corkscrew.
From Los Angeles Times • Mar. 1, 2025
Consequentially, a gap in a bone might be a wound from a musket ball or a bayonet - or it might not be.
From Washington Times • Apr. 14, 2023
Officers saw a bayonet and machete, which are illegal in the District of Columbia, inside the truck.
From Seattle Times • Sep. 13, 2021
I figured they might be able to guess who’d thrown that bayonet into the stockade, but nobody would be able to prove anything.
From "My Brother Sam is Dead" by James Lincoln Collier and Christopher Collier
![]()
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.