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.
Thomas was going to be picked off before the next pitch, but first baseman Jared Jones hit him in the back of the helmet with his throw. Matt Jones, Arkansas Online, 12 May 2025 The helmet prevented the bear from splitting his head open like a melon or tearing his face off. Benjamin Alva Polley, Rolling Stone, 10 May 2025 Bode’s parents threw on their coats and helmets — but no SCBA — and made a beeline into the building, much to Jake’s frustration. Matt Webb Mitovich, TVLine, 9 May 2025 The suspect was wearing tactical gear, including a helmet and gas mask. Rick Sobey, Boston Herald, 7 May 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 20 May. 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
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