These are the meanings of the letters ARKC when you unscramble them.
            
                
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                    Cark (n.)
                    
                        A noxious or corroding care; solicitude; worry.
                     
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                    Cark (v. i.)
                    
                        To be careful, anxious, solicitous, or troubles in mind;   to worry or grieve.
                     
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                    Cark (v. t.)
                    
                        To vex; to worry; to make by anxious care or worry.
                     
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                    Rack (a.)
                    
                        A bar with teeth on its face, or edge, to work with those of   a wheel, pinion, or worm, which is to drive it or be driven by it.
                     
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                    Rack (a.)
                    
                        A distaff.
                     
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                    Rack (a.)
                    
                        A frame fitted to a wagon for carrying hay, straw, or grain   on the stalk, or other bulky loads.
                     
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                    Rack (a.)
                    
                        A frame on which articles are deposited for keeping or   arranged for display; as, a clothes rack; a bottle rack, etc.
                     
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                    Rack (a.)
                    
                        A frame or device of various construction for holding, and   preventing the waste of, hay, grain, etc., supplied to beasts.
                     
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                    Rack (a.)
                    
                        A frame or table on which ores are separated or washed.
                     
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                    Rack (a.)
                    
                        A grate on which bacon is laid.
                     
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                    Rack (a.)
                    
                        A piece or frame of wood, having several sheaves, through   which the running rigging passes; -- called also rack block. Also, a   frame to hold shot.
                     
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                    Rack (a.)
                    
                        An engine of torture, consisting of a large frame, upon which   the body was gradually stretched until, sometimes, the joints were   dislocated; -- formerly used judicially for extorting confessions from   criminals or suspected persons.
                     
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                    Rack (a.)
                    
                        An instrument for bending a bow.
                     
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                    Rack (a.)
                    
                        An instrument or frame used for stretching, extending,   retaining, or displaying, something.
                     
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                    Rack (a.)
                    
                        That which is extorted; exaction.
                     
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                    Rack (n.)
                    
                        A fast amble.
                     
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                    Rack (n.)
                    
                        A wreck; destruction.
                     
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                    Rack (n.)
                    
                        Same as Arrack.
                     
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                    Rack (n.)
                    
                        The neck and spine of a fore quarter of veal or mutton.
                     
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                    Rack (n.)
                    
                        Thin, flying, broken clouds, or any portion of floating vapor   in the sky.
                     
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                    Rack (v.)
                    
                        To amble fast, causing a rocking or swaying motion of the   body; to pace; -- said of a horse.
                     
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                    Rack (v. i.)
                    
                        To fly, as vapor or broken clouds.
                     
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                    Rack (v. t.)
                    
                        To bind together, as two ropes, with cross turns of yarn,   marline, etc.
                     
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                    Rack (v. t.)
                    
                        To draw off from the lees or sediment, as wine.
                     
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                    Rack (v. t.)
                    
                        To extend by the application of force; to stretch or   strain; specifically, to stretch on the rack or wheel; to torture by an   engine which strains the limbs and pulls the joints.
                     
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                    Rack (v. t.)
                    
                        To stretch or strain, in a figurative sense; hence, to   harass, or oppress by extortion.
                     
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                    Rack (v. t.)
                    
                        To torment; to torture; to affect with extreme pain or   anguish.
                     
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                    Rack (v. t.)
                    
                        To wash on a rack, as metals or ore.