helmet

noun

hel·​met ˈhel-mət How to pronounce helmet (audio)
1
: a covering or enclosing headpiece of ancient or medieval armor see armor illustration
2
: any of various protective head coverings usually made of a hard material to resist impact
3
: something resembling a helmet
helmeted adjective
helmetlike adjective

Examples of helmet in a Sentence

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.
Branch was fined $23,186 earlier this season for chucking Tucker Kraft’s helmet in a Week 1 game against the Green Bay Packers. Colton Pouncy, New York Times, 16 Oct. 2025 Participants receive a free helmet, while supplies last and may be eligible for an e-bike rebate through the City of Vista’s program. Linda McIntosh, San Diego Union-Tribune, 16 Oct. 2025 After exchanging words, Branch slapped Smith-Schuster across the helmet. Ryan Canfield, FOXNews.com, 16 Oct. 2025 All cavers should have a helmet, three light sources, backup batteries, knee and elbow pads, gloves, and sturdy boots. Heide Brandes, AFAR Media, 15 Oct. 2025 See All Example Sentences for helmet

Word History

Etymology

Middle English, from Middle French, diminutive of helme helmet, of Germanic origin; akin to Old English helm helmet, Old High German helan to conceal — more at hell

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of helmet was in the 15th century

Browse Nearby Words

Cite this Entry

“Helmet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/helmet. Accessed 19 Oct. 2025.

Kids Definition

helmet

noun
hel·​met ˈhel-mət How to pronounce helmet (audio)
1
: a covering or enclosing headpiece of armor
2
: any of various protective head coverings usually made of a hard material
helmetlike adjective

More from Merriam-Webster on helmet

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!