sidelight

Meanings

Plural: sidelights

Noun

• light carried by a boat that indicates the boat's direction; vessels at night carry a red light on the port bow and a green light on the starboard bow
• A light found at the side of something; especially of a vehicle.
• A window found at one or both sides of a door.
• A piece of incidental information that helps one understand a subject.

Synonyms

running light