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coon·can(ko͞on′kăn′) or con·qui·an (kŏng′kē-ən)
An early version of rummy for two players using 40 cards, in which the object is to meld all of the cards in one's hand in straights of 3 or more cards of the same suit or sets of 3 or 4 cards of the same rank.
(Card Games) a card game for two players, similar to rummy
[C19: from (Mexican) Spanish con quién with whom?, apparently with reference to the forming and declaring of sequences and sets of cards]
a variety of rummy for two players.
[1885–90, Amer.; alter. of conquian < Sp con quien? literally, with whom?]