taillight

noun

tail·​light ˈtāl-ˌlīt 

: a usually red warning light mounted at the rear of a vehicle

called also taillamp

Examples of taillight in a Sentence

Recent Examples on the Web

Ensure your vehicle is visible to others by using low-beam headlights, which also activate your taillights. —Nc Weather Bot, Charlotte Observer, 20 Feb. 2026

Using low-beam headlights, which also activate your taillights. —Ca Weather Bot, Sacbee.com, 20 Feb. 2026

The Kamm tail, with its upturned spoiler and flat panel adorned with Ferrari’s signature twin round taillights, is a nod to aerodynamics that prefigures the shape of the Lusso’s spiritual successor, the 275 GTB. —Robert Ross, Robb Report, 16 Feb. 2026

Make your vehicle visible to others both ahead of you and behind you by using your low-beam headlights since this means your taillights will also be on. —Star-Telegram Weather Bot, Fort Worth Star-Telegram, 16 Feb. 2026

Word History

First Known Use

1844, in the meaning defined above

Rhymes for taillight

• affright
• airtight
• albite
• alight
• alright
• aplite
• aright
• bainite
• birthright
• bobwhite
• bornite
• bullfight

Kids Definition

taillight

noun

tail·​light ˈtā(ə)l-ˌlīt 

: a red warning light mounted at the rear of a vehicle