hel·​met | \ ˈhel-mət \

Definition of helmet

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

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Other Words from helmet

helmeted \ ˈhel-​mə-​təd \ adjective
helmetlike \ ˈhel-​mət-​ˌlīk \ adjective

Examples of helmet in a Sentence

Recent Examples on the Web

The sharp cut, usually teamed with short bangs, is often styled to create a helmet-like silhouette. refinery29.com, "Zendaya Wore L.A.'s Most Popular Haircut At The Met Gala," 8 May 2018 That includes a Denver Broncos football helmet signed by former quarterback Tim Tebow, which Trump bought at a charity auction in 2012 with $12,000 in Trump Foundation money. David A. Fahrenthold, The Seattle Times, "Trump to shut down charity after lawsuit said he used it for personal and political benefit," 18 Dec. 2018 During her solo trip to Africa in the fall, first lady Melania Trump was criticized for wearing a white helmet associated with colonial rule. Dion Nissenbaum, WSJ, "U.S. to Africa: Pick Either US or China and Russia, Not Both," 13 Dec. 2018 Also removed from the tariff list: Bluetooth devices, bicycle helmets, high chairs and car seats. Recode Staff, Recode, "Recode Daily: Apple Watch and AirPods escape Trump’s list of China tariffs," 18 Sep. 2018 In the dining room is a metal diving helmet from the early 1900s that he was given by a family friend, and his office is filled with an extensive library of vintage nautical books. Gisela Williams, ELLE Decor, "A Portuguese Family Manor is Transformed Into a Heritage-Rich Island Getaway," 17 Sep. 2018 Photos in Honduran news outlets show zip-line staff members wearing orange helmets carrying the tourists out of the forested area and into ambulances. Samantha Schmidt, ajc, "Tourists on honeymoon collide while zip-lining, leaving husband dead and wife injured," 10 July 2018 It can be mounted to a head strap or directly to a helmet. Andrew Northshield, Popular Mechanics, "A Former Marine Tests the Best Headlamps," 6 Nov. 2018 Or put on Microsoft’s HoloLens headset, which feels like a medieval helmet. Joanna Stern, WSJ, "Augmented Reality Will Put the Internet Everywhere," 22 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'helmet.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of helmet

15th century, in the meaning defined at sense 1

History and Etymology for helmet

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

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Statistics for helmet

Last Updated

15 Jan 2019

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Time Traveler for helmet

The first known use of helmet was in the 15th century

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More Definitions for helmet



English Language Learners Definition of helmet

: a hard hat that is worn to protect your head


hel·​met | \ ˈhel-mət \

Kids Definition of helmet

: a protective covering for the head

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More from Merriam-Webster on helmet

Rhyming Dictionary: Words that rhyme with helmet

Thesaurus: All synonyms and antonyms for helmet

Spanish Central: Translation of helmet

Nglish: Translation of helmet for Spanish Speakers

Britannica English: Translation of helmet for Arabic Speakers

Britannica.com: Encyclopedia article about helmet

Comments on helmet

What made you want to look up helmet? Please tell us where you read or heard it (including the quote, if possible).


tremendous in size, volume, or degree

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  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
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