Source : Webster's Revised Unabridged Dictionary (1913)

Shoplifting \Shop"lift`ing\, n.
   Larceny committed in a shop; the stealing of anything from a
   shop.

Source : WordNet®

shoplifting
     n : the act of stealing goods that are on display in a store;
         "shrinkage is the retail trade's euphemism for
         shoplifting" [syn: {shrinkage}]