# coplanar

> English word · Adjective · IPA /kəʊˈpleɪnə(ɹ)/

## Definitions
1. Within the same plane.
2. Orbiting a central celestial object within the same orbital plane.

## Etymology
From co- + planar.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/coplanar