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black-jack

black-jack is defined in Webster's Unabridged Dictionary (1913) with 4 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.Caramel or burnt sugar, used to color wines, spirits, ground coffee, etc.
  2. 2.A large leather vessel for beer, etc. [Obs.]
  3. 3.(Bot.) The Quercus nigra, or barren oak.
  4. 4.The ensign of a pirate.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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