helmet

noun

hel·​met ˈhel-mət How to pronounce helmet (audio)
Synonyms of helmetnext
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.
As inherently goofy as the practice is—imagine Andy Reid pacing the sidelines in full shoulder-pads-and-helmet regalia, or Mike Brown rocking shorts and a tank top at the Garden—baseball would be diminished in some small way if the managers decided to start wearing street clothes. Anthony Crupi, Sportico.com, 13 Mar. 2026 The helmet and face mask will now be white. Zach Powell, New York Times, 13 Mar. 2026 By state regulation, children under 16 are required to wear helmets while riding. Alissa Gary, Sun Sentinel, 12 Mar. 2026 One of the teens, riding a black e-bike, was described as about 16 to 17 years old, 5-foot-8 and about 160 to 170 pounds wearing a white T-shirt, black pants and a black helmet. City News Service, Oc Register, 11 Mar. 2026 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 14 Mar. 2026.

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

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