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

The role of a backup quarterback is to be in touch and in tune, helmet in hand, game plan in mind. —Joe Davidson, Sacbee.com, 25 Sep. 2025

The helmets were sold in pink with a unicorn, rainbow and star print, as well as black padding, black straps and a black and red buckle with a black chin pad. —Mary Walrath-Holdridge, USA Today, 24 Sep. 2025

Managers can’t make the call; only the pitcher, catcher, or batter can, signaling with a quick tap to the cap or helmet. —Neetika Walter, Interesting Engineering, 23 Sep. 2025

At the stick in the cockpit’s left seat is Randy Oates, a Helitack pilot rocking a ZZ Top beard in a flight helmet and Nomex coveralls. —Ted Katauskas, Outside, 23 Sep. 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