Definition

The part of a planet or celestial body that is not illuminated by the sun, typically experiencing darkness.

Example

The nightside of the moon is always dark because it faces away from the sun.

Conversation

Did you know there's a whole nightside of the Earth that we rarely see?

Really? I never thought about it that way.

Yeah, it's fascinating how the nightside is always in darkness while the other side basks in sunlight.

I guess it makes you appreciate the stars more when you're on that side!

Synonyms & Antonyms

Root Explanation

Nightside is formed from "night" (from Old English "niht", meaning the period of darkness) and "side" (from Old English "side", meaning a position or aspect). The word "nightside" refers to the aspect or side that is associated with night or darkness.

Memory Tip

Think of the 'period of darkness' ('night') and the 'position' or 'aspect' ('side') to remember that 'nightside' refers to the side associated with night.

Visually Confused Words