Definition of crook adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//krʊk//
; NAmE NAmE//krʊk//
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[not usually before noun] (Australian English, New Zealand English, informal) ill/sick I’m feeling a bit crook. Word OriginMiddle English (in the sense ‘hooked tool or weapon’): from Old Norse krókr ‘hook’. A noun sense ‘deceit, guile, trickery’ (compare with crooked) was recorded in Middle English but was obsolete by the 17th cent. The Australian senses are abbreviations of crooked.