side

noun
/ˈsaɪ̯d/

A bounding straight edge of a two-dimensional shape.

Example

“A square has four sides.”

Other meanings

A flat surface of a three-dimensional object; a face.
“A cube has six sides.”
One half (left or right, top or bottom, front or back, etc.) of something or someone.

Example sentences

“Both sides don't always make equally good points.”
Tatoeba · shekitten · CC0
“How many sides does a hexagon have?”
Tatoeba · ddnktr · CC0
“He stood by her side no matter what.”
Tatoeba · Igider · CC0

Word history

From Old English "sīde" (side, flank).

Where this comes from

This definition is adapted from “side” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.