ace

Meanings

1. 1
   noun

   a person who excels at something, or a playing card marked with a single pip

   He is an ace at solving complex puzzles.

From Old French as ('a unit, the one on dice'), from Latin as ('a unit, a copper coin'), of uncertain ultimate origin, possibly from Etruscan. The sense 'expert' arose in 20th-century aviation slang.

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