Search Dictionary
Definition of onyx

onyx

/ˈɑː.nɪks/
on · yx
Plural:onyxes
JUMP TO:

onyx Lexical Profile

onyx Game Scores & Validity

• noun

1

A semiprecious variety of chalcedony quartz having parallel bands of alternating colors, especially black and white, commonly used in jewelry and carved cameos.

Example

"The antique ring featured a polished piece of black onyx set in sterling silver."

2

A deep, lustrous black color like that of black onyx.

Example

"The interior designer paired warm brass fixtures with tiles of deep onyx."

Synonyms
View all synonyms for onyx
Antonyms
View all antonyms for onyx

• adjective

1

Of a deep, glossy black color resembling black onyx.

Example

"The stallion had a sleek onyx coat that gleamed in the morning sun."

Synonyms
View all synonyms for onyx
Antonyms
View all antonyms for onyx

• Rhymes for onyx

• Nearby Words

onto
onus
onward
onyx
oobleck
oodles
oof

Word Origin & Etymology

Borrowed via Old French and Latin from Ancient Greek 'onyx', meaning 'claw' or 'fingernail', because the translucent flesh-colored and white bands of certain varieties resembled the human nail.

Cite this Entry

Wordmom. (2026). Definition of Onyx. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/onyx
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.