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 automatically activate your taillights. —Nc Weather Bot, Charlotte Observer, 10 Mar. 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. —Kansas City Star Weather Bot, Kansas City Star, 5 Mar. 2026

Or the large rear air vent that houses the halo taillight. —New Atlas, 5 Mar. 2026

These four-seaters — mimicking a Dodge Charger, Mazda RX-Y, Nissan Skyline GT-R and Toyota Supra, all complete with pull-down lap-bars and working taillights — were unveiled at a media event Wednesday. —Todd Martens, Los Angeles Times, 4 Mar. 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