# rhombus

> English word · Noun · IPA /ˈɹɒmbəs/ · frequency rank #82,726

## Definitions
1. A parallelogram having all sides of equal length.
2. A parallelogram having all sides of equal length.
3. In early Greek religion, an instrument whirled on the end of a string similar to a bullroarer.
4. Any of several flatfishes, including the brill and turbot, once considered part of the genus Rhombus, now in Scophthalmus.
5. Snails, now in genus Conus or family Conidae.

## Etymology
Learned borrowing from Latin rhombus, from Ancient Greek ῥόμβος (rhómbos, “rhombus, spinning top”). Doublet of rhomb and rhumb.

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