Definition of rack:
framework for holding objects
rib section of a forequarter of veal or pork or especially lamb or mutton
the destruction or collapse of something; "wrack and ruin"
an instrument of torture that stretches or disjoints or mutilates victims
a support for displaying various articles; "the newspapers were arranged on a rack"
a form of torture in which pain is inflicted by stretching the body
a rapid gait of a horse in which each foot strikes the ground separately
go at a rack; "the horses single-footed"
stretch to the limits; "rack one's brains"
put on a rack and pinion; "rack a camera"
obtain by coercion or intimidation; "They extorted money from the executive by threatening to reveal his past to the company boss"; "They squeezed money from the owner of the business by threatening him"
run before a gale
fly in high wind
draw off from the lees; "rack wine"
torment emotionally or mentally
work on a rack; "rack leather"
seize together, as of parallel ropes of a tackle in order to prevent running through the block
torture on the rack