Longman Dictionary of Contemporary English
tail light
noun
EXAMPLES FROM CORPUS
▪ It might have been a tail light going the other way but it stayed the same size.
Wiktionary
tail light
n. (alternative form of taillight English)
Usage examples of "tail light".
If any cop was coming, he wouldn't see one more tail light among all the others.
I walked to the rear of the car where the tail light shot out a feeble ray, and stood peering off into the blackness in the direction whence I had come.
I told him obligingly, and stood at the curb and watched their tail light as they headed for the corner.