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1. Causing great physical or mental suffering
   - wrenching

1. Go at a rack
   - single-foot
    
2. Stretch to the limits
   "rack one's brains"
    
3. Put on a rack and pinion
   "rack a camera"
    
4. Obtain by coercion or intimidation
   - extort, squeeze, gouge, wring
    
5. Run before a gale
   - scud
    
6. Fly in high wind
    
7. Draw off from the lees
   "rack wine"
    
8. Torment emotionally or mentally
   - torment, torture, excruciate
    
9. Work on a rack
   "rack leather"
    
10. Seize together, as of parallel ropes of a tackle in order to prevent running through the block
     
11. Torture on the rack

See also: painful

Type of: anguish, clutch, draw, excruciate, fleece, fly, gazump [Brit], hook, hurt, overcharge, pace, pain, pluck, plume, prehend [archaic], process, put to work, rob, sail, seize, soak, strain, stress, surcharge, take out, torment, torture, try, wing, work, work on

Encyclopedia: Rack Rack, Shack, and Benny Rack, Shack and Benny