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

When 70 chickens at a local farm lay 128 eggs in just one night after the arrival of a red helmet biker Emanuel, the event is described as a miracle and Emanuel hailed by the local priest as a prophet of divine powers. — John Hopewell, Variety, 9 Aug. 2026

Defensive line coach Joe Cullen pulled Anudike-Uzomah, who had his helmet off during the scuffle. — Blair Kerkhoff, Kansas City Star, 8 Aug. 2026

Fans could choose from rows upon rows of cleats, stacks of polos, piles of official football jerseys, bins of socks and racks of helmets. — Dana O’Neil, CNN Money, 7 Aug. 2026

Air Force market research released before the current program indicated the service wanted a successor that matches or exceeds the protection offered by the EEU-2A/P while integrating more effectively with modern helmets and flight equipment. — Aamir Khollam, Interesting Engineering, 7 Aug. 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