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.
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
Tigri, grim-faced in body armor, stood next to Samary, slightly comical with his helmet askew and rifle hanging from a sling.
From The Wall Street Journal • Mar. 12, 2026
He grabbed his brush jacket, helmet and gloves and climbed over.
From Los Angeles Times • Mar. 11, 2026
She removed her helmet and cowl as she walked.
From Anya and the Nightingale 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.
