noun
plural racks
[count] :a frame or stand that has shelves, hooks, slots, etc., in which or on which you place things
the rack :a machine used in the past to hurt people by stretching their bodies
[count] technical :a bar with teeth that fit into a gear or a wheel in a machine
[count] :a pair of antlers
[count] US informal :1bed
[count] US
a triangular frame that is used to group the balls together in a billiard game
a group of billiard balls that have been set up with a rack
off the rack
US :in a store where clothes are sold in different sizes that are not made to fit a particular person
on the rack
Brit informal :in a very bad or difficult situation
verb
racks; racked; racking
[+ obj] to cause (someone or something) to suffer pain or damage - usually used as (be) racked
US :to put (balls) in a rack for a game of billiards
rack up
[phrasal verb]
rack up (something) informal :to achieve or get (something) as time passes :accumulate
rack your brain/brains
to think very hard in order to try to remember something, solve a problem, etc.
noun
plural racks
[count, noncount] :a cut of meat from a lamb or pig that includes some of the ribs
noun
[noncount] :the state of being destroyed or ruined