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jewel block

American  

noun

Nautical.
  1. a block at the end of a yard or gaff for supporting a signal or ensign halyard.


Etymology

Origin of jewel block

First recorded in 1760–70

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"I know the main truck from a jewel block," Laurel replied complacently.

From Java Head by Hergesheimer, Joseph

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