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

Usher and Brown eventually meet in a parking lot, remove their helmets, walk into a venue and step into an elevator. —ABC News, 10 Apr. 2026

McNeil, traded to the A's in December after spending his first eight big league seasons with the Mets, received a warm ovation before his first at-bat and tipped the bill of his helmet twice. —CBS News, 10 Apr. 2026

Bennett said Nicholson and an assistant scolded her in front of the team after a game at Belmont in 2016 for throwing her helmet and claimed the umpire was on the verge of ejecting her. —Edward Lee, Baltimore Sun, 9 Apr. 2026

Coverage also includes up to $3,000 for safety apparel (like helmets) if damaged in a covered collision. —Liz Knueven, CNBC, 9 Apr. 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