helmet
Americannoun
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any of various forms of protective head covering worn by soldiers, firefighters, divers, cyclists, etc.
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medieval armor for the head.
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(in fencing, singlestick, etc.) a protective device for the head and face consisting of reinforced wire mesh.
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anything resembling a helmet in form or position.
noun
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a piece of protective or defensive armour for the head worn by soldiers, policemen, firemen, divers, etc
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biology a part or structure resembling a helmet, esp the upper part of the calyx of certain flowers
Other Word Forms
- helmeted adjective
- helmetlike adjective
- unhelmeted adjective
Etymology
Origin of helmet
1400–50; late Middle English < Middle French healmet, helmet, diminutive of helme helm 2
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.
On his desk there's a green-feathered helmet associated with the Shia warrior Husayn ibn Ali, who features in several of their videos.
From BBC • Apr. 11, 2026
Some fought with only a trident; some fought mounted on horseback; some on chariot; others on foot with helmet and short sword; some with two daggers; still others exclusively fought wild beasts.
From The Wall Street Journal • Apr. 3, 2026
They are dressed as their favourite characters, with Conroy carrying an enormous replica shotgun, while his helmet was dumped on the floor nearby.
From BBC • Mar. 28, 2026
He grabbed his brush jacket, helmet and gloves and climbed over.
From Los Angeles Times • Mar. 11, 2026
Someone stood beneath the tree: a huge man wearing a winged helmet.
From Anya and the Dragon by Sofiya Pasternack
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.
