onyx

Definitions

1. A census-designated place in Kern County, California, United States.
2. A banded variety of chalcedony, a cryptocrystalline form of quartz.
   countable, uncountable
3. A jet-black color, named after the gemstone.
   countable, uncountable
4. Any of various lycaenid butterflies of the genus Horaga.
   countable, uncountable

Equivalents

Examples

“People talk⟳ about using marble in the bathrooms. Marble wasn't good enough for use⟳—we have⟳ onyx!”

“Near-synonyms: ebony, raven”

CEFR level