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

Players wore several different versions of tributes to their late teammates, including towels and helmet stickers with the players’ jersey numbers on them, while parents wore clothes with inspirational messages on them in memory of the three teenagers. —Sean Neumann, PEOPLE, 23 Oct. 2025

Two men, one wearing a yellow vest and a black face covering, and a second wearing all black and a motorbike helmet, can be seen in the video quickly descending in the lift positioned at the side of the museum. —Zacharie Petit, NBC news, 23 Oct. 2025

One of the two scooters had been retrieved as well as a helmet worn by one of the suspects, the official added. —Hilary Whiteman, CNN Money, 23 Oct. 2025

Bikes and helmets can be added to this small bike rack. —Michelle Mastro, Architectural Digest, 23 Oct. 2025

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