A rook is a crow-like black bird that lives in northern Europe. To rook someone is to trick them, like a sneaky old crow. And in chess, the rook is the piece that looks like a tower or a castle.

You can tell the difference between a rook and a crow, which are both members of the bird family Corvus, by the pale skin around a rook's bill in front of its eyes and the shaggy feathers around its legs. Urban rooks, like their crow cousins, prefer areas near human activity where they can scavenge food — although they also eat earthworms and insects. You're most likely to see rooks in northern Europe, Iceland, and parts of Scandinavia (or on a chess board :) .

Definitions of rook
  1. noun
    common gregarious Old World bird about the size and color of the American crow
    synonyms: Corvus frugilegus
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    type of:
    corvine bird
    birds of the crow family
  2. verb
    deprive of by deceit
    synonyms: bunco, con, defraud, diddle, gip, goldbrick, gyp, hornswoggle, mulct, nobble, scam, short-change, swindle, victimize
    see moresee less
    short, short-change
    cheat someone by not returning him enough money
    type of:
    cheat, chisel, rip off
    deprive somebody of something by deceit
  3. noun
    (chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard
    synonyms: castle
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    type of:
    chess piece, chessman
    any of 16 white and 16 black pieces used in playing the game of chess
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