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

From 1965 to 1969, the Redskins donned burgundy helmets that featured a spear and feather on each side. — Armando Salguero Outkick, FOXNews.com, 6 Oct. 2026

The pregnant singer also wore a chandelier-style helmet with strands of gems dangling like tassels from the base. — Julia Teti, Footwear News, 5 Oct. 2026

Jaguars cornerback Jarrian Jones grabbed Chase by the facemask, and while Chase was falling to the ground, he was hit helmet-to-helmet by Jaguars linebacker Ventrell Miller. — Zak Keefer, New York Times, 4 Oct. 2026

Jackson was standing on the sideline but didn't have his helmet on. — ABC News, 4 Oct. 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