English

Alternative forms

• stop light

Noun

stoplight ‎(plural stoplights)

1. (US) A traffic control signal, traditionally consisting of three lights, colored green, yellow/amber, and red, meaning proceed, prepare to stop, and stop, respectively.

Usage notes

The two-word form stop light was initially more common, but its usage plateaued around 1950, whereas usage of stoplight increased continually since that year, overtaking stop light around 1970.

Synonyms

• traffic light
• traffic signal (US)
• robot (S. African)

Translations

Anagrams

• spotlight