helmet

noun

hel·​met ˈhel-mət 

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

ˈhel-mə-təd 

adjective

helmetlike

ˈhel-mət-ˌlīk 

adjective

Examples of helmet in a Sentence

Recent Examples on the Web

Veo also plan to give out about 1,000 helmets per year to anyone who needs them. —Elliott Wenzler, Denver Post, 19 Mar. 2026

Malkin's punishment from the NHL was for raising his stick and striking Buffalo Sabres defenseman Rasmus Dahlin on the helmet and shoulder during their game on March 5. —CBS News, 17 Mar. 2026

Sweat’s size — 6-5, 265 pounds — would look good with a star on his helmet. —Dallas Morning News, 16 Mar. 2026

The Crown Point Lions Club will offer free eye exams for children during the event, and free bike helmets will be available while supplies last. —Post-Tribune, Chicago Tribune, 16 Mar. 2026

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

Phrases Containing helmet

• crash helmet
• pith helmet

Kids Definition

helmet

noun

hel·​met ˈhel-mət 

1

: a covering or enclosing headpiece of armor

2

: any of various protective head coverings usually made of a hard material

helmetlike

-ˌlīk 

adjective