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
Derived Forms
Inflected Forms
Nouns
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.
He spun his helmet behind him as he jogged toward the center of the field, ready for the celebration that would meet him there.
From Los Angeles Times • Jul. 7, 2026
Stokes left the Test arena for the final time with his bat and helmet held aloft, saluting a rapturous ovation.
From BBC • Jun. 28, 2026
In the very first “Doonesbury” comic strip, a young man wearing a football helmet sits in a dorm, waiting to meet his new roommate.
From The Wall Street Journal • Jun. 19, 2026
He has completed two missions aboard the International Space Station and carried out complex spacewalks, including one that could have turned deadly when his helmet began filling with water.
From Barron's • Jun. 9, 2026
Alvarez was stunned to see his own flight helmet and uniform on display, clearly labeled with his name.
From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin
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.
