Definition of rook noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//rʊk//
    ; NAmE NAmE//rʊk//
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  1. 1 a large black bird of the crow family. Rooks build their nests in groups at the tops of trees. See related entries: Birds
  2. 2 = castle (2)
  3. Word Originsense 1 Old English hrōc, probably imitative and of Germanic origin; related to Dutch roek.sense 2 Middle English: from Old French rock, based on Arabic ruk̲k̲ (of which the sense remains uncertain).
See the Oxford Advanced American Dictionary entry: rook

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