noun A bent or curved part; a curving piece or portion (of anything).
the crook of a cane
noun A person who steals, lies, cheats, or does other dishonest or illegal things; a criminal; a scoundrel, scofflaw, lawbreaker, rogue, or miscreant.
noun A lock or curl of hair.
noun A support beam consisting of a post with a cross-beam resting upon it; a bracket or truss consisting of a vertical piece, a horizontal piece, and a strut.
noun A specialized staff with a semi-circular bend (a "hook") at one end used by shepherds to control their herds.