■ noun
1》 a precious stone, especially a single crystal or a cut and polished piece of a lustrous or translucent mineral.
↘( ~s ) pieces of ~lery.
↘a hard precious stone used as a bearing in a watch, compass, etc.
2》 a highly valued person or thing.
Derivatives
~led ( US ~ed ) adjective
Phrases
the ~ in the (or one's ) crown the most valuable or successful part of something.
Origin
ME: from OFr. joel , from jeu 'game, play', from L. jocus 'jest'.