onyx

noun

on·​yx ˈä-niks 

: a translucent chalcedony in parallel layers of different colors

Examples of onyx in a Sentence

Recent Examples on the Web

The capsule is offered in Skims’ ecru, cocoa and onyx colorways, and each piece is crafted with versatility in mind, designed to transition from day to night. — Lisa Lockwood, Footwear News, 21 July 2026

The black gown featured a plunging neckline with black onyx stones. — Caroline Blair, PEOPLE, 12 July 2026

The differing inlay materials — such as mother of pearl, malachite and onyx — have been given different mystical meanings by social media users (helping with the wearer’s career, love life, friendships or finances, for example). — CNN Money, 8 July 2026

The lower levels, meanwhile, hold a movie theater displaying a wall dedicated to Heigl’s knitting hobby, plus a spa wing with a sauna and a multihead steam shower finished in honeycomb onyx. — Wendy Bowman, Robb Report, 2 July 2026

Word History

Etymology

Middle English oniche, onyx, from Anglo-French & Latin; Anglo-French, from Latin onych-, onyx, from Greek, literally, claw, nail — more at nail

First Known Use

14th century, in the meaning defined above

Rhymes for onyx

• conics
• phonics
• sonics
• tonics
• avionics
• electronics
• histrionics
• hydroponics
• nucleonics
• ultrasonics
• harmonics
• ionics

Kids Definition

onyx

noun

on·​yx ˈän-iks 

: chalcedony in parallel layers of different color