Definition

A shape that has nine straight sides and nine angles.

Example

The artist drew a nonagon as part of her geometric design.

Conversation

Have you ever heard of a nonagon?

Yeah, it's a shape with nine sides, right?

Exactly! I was just reading about different polygons.

That's cool! I love learning about shapes.

Synonyms & Antonyms

Root Explanation

Nonagon → It is formed from "nonus" (meaning nine) and "gon" (from Greek "gonia", meaning angle). The word "nonagon" refers to a shape with nine angles or sides.

Memory Tip

Think of 'nine' ('nonus') and 'angles' ('gon') to remember that a nonagon is a shape with nine angles.

Visually Confused Words