# cubic

> English word · Adjective · IPA /ˈkjuː.bɪk/ · frequency rank #11,009

## Definitions
1. Used in the names of units of volume formed by multiplying a unit of length by itself twice.
2. Relating to polynomials of the form ax³+bx²+cx+d.
3. Having three equal axes and all angles 90°.

## Etymology
From Middle French cubique, equivalent to cube + -ic.

## Easily confused with
- **Cui** (https://plainspell.com/en/vs/cubic-vs-cui)
- **Cubs** (https://plainspell.com/en/vs/cubic-vs-cubs)
- **cutie** (https://plainspell.com/en/vs/cubic-vs-cutie)
- **Cupid** (https://plainspell.com/en/vs/cubic-vs-cupid)
- **cumin** (https://plainspell.com/en/vs/cubic-vs-cumin)
- **curie** (https://plainspell.com/en/vs/cubic-vs-curie)
- **cynic** (https://plainspell.com/en/vs/cubic-vs-cynic)
- **curia** (https://plainspell.com/en/vs/cubic-vs-curia)
- **cubicle** (https://plainspell.com/en/vs/cubic-vs-cubicle)
- **CBC** (https://plainspell.com/en/vs/cbc-vs-cubic)
- **Cub** (https://plainspell.com/en/vs/cub-vs-cubic)
- **Cuba** (https://plainspell.com/en/vs/cuba-vs-cubic)
- **cube** (https://plainspell.com/en/vs/cube-vs-cubic)
- **chic** (https://plainspell.com/en/vs/chic-vs-cubic)
- **CNBC** (https://plainspell.com/en/vs/cnbc-vs-cubic)
- **comic** (https://plainspell.com/en/vs/comic-vs-cubic)
- **cabin** (https://plainspell.com/en/vs/cabin-vs-cubic)
- **civic** (https://plainspell.com/en/vs/civic-vs-cubic)
- **Cuban** (https://plainspell.com/en/vs/cuban-vs-cubic)
- **cubes** (https://plainspell.com/en/vs/cubes-vs-cubic)

## Common misspellings (7)
`cbuic`, `ccubic`, `cubbic`, `cubci`, `cubicc`, `cuibc`, `ucbic`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/cubic