Other forms: streetlights
A streetlight is the tall lamp that lights the road once night falls. Orange in older towns, white now nearly everywhere.
The changeover from sodium to LED has changed the colour of the night in most British towns within a decade, and some places switch them off after midnight to save money. British English also says street lamp and lamppost, the last of which usually means the column rather than the light. The word is written as one word or two. Astronomers dislike them all, since they wash out the sky.
1nounstreetlightA lamp on a tall post that lights a public road.
“The streetlight outside had been flickering for weeks.”
Also accepted in games: lamppost, street lamp
From street + light.
Etymology from Wiktionary, CC BY-SA