Definition

A situation where lights are turned off or dimmed, usually to avoid detection by enemy aircraft during a war or to save energy.

Example

The city implemented a dimout to protect itself from potential air raids.

Conversation

Did you hear about the city's dimout plan for tonight?

Yeah, it's supposed to help with safety during the air raid alerts.

I wonder how dark it will actually get with the dimout.

Probably pretty dark, but it’s better to be safe than sorry.

Synonyms & Antonyms

Root Explanation

Dimout → The word is formed from "dim" (from Old English *dimm*, meaning not bright or obscure) and "out" (meaning outside or away). The term refers to a reduction of light or visibility, particularly in a controlled manner, such as during wartime to avoid detection.

Memory Tip

Think of 'dim' meaning not bright and 'out' suggesting a reduction in light — that's why dimout refers to making things less visible.

Visually Confused Words