Definition of the jewel in the or one's crown in English:

the jewel in the (or one's) crown

The most valuable or successful part of something: science is the brightest jewel in the crown of our civilization
More example sentences
  • This has been the dilemma facing the FA as they once again tinkered with the jewel in their crown, the FA Cup this week.
  • Monopoly, however, is the jewel in their crown, one which they guard jealously.
  • Our reservoirs and surrounding countryside are the jewel in our crown when we play host to visitors and tourists.
See parent entry: jewel

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Word of the day internecine
Pronunciation: ˌintərˈnesēn
adjective
destructive to both sides in a conflict