Source : Webster's Revised Unabridged Dictionary (1913)

Shop \Shop\, v. i. [imp. & p. p. {Shopped}; p. pr. & vb. n.
   {Shopping}.]
   To visit shops for the purpose of purchasing goods.

         He was engaged with his mother and some ladies to go
         shopping.                                --Byron.

Source : WordNet®

shop
     n 1: a mercantile establishment for the retail sale of goods or
          services; "he bought it at a shop on Cape Cod" [syn: {store}]
     2: small workplace where handcrafts or manufacturing are done
        [syn: {workshop}]
     3: a course of instruction in a trade (as carpentry or
        electricity); "I built a birdhouse in shop" [syn: {shop
        class}]
     [also: {shopping}, {shopped}]

shop
     v 1: do one's shopping; "She goes shopping every Friday"
     2: do one's shopping at; do business with; be a customer or
        client of [syn: {patronize}, {patronise}, {shop at}, {buy
        at}, {frequent}, {sponsor}] [ant: {boycott}, {boycott}]
     3: shop around; not necessarily buying; "I don't need help, I'm
        just browsing" [syn: {browse}]
     4: give away information about somebody; "He told on his
        classmate who had cheated on the exam" [syn: {denounce}, {tell
        on}, {betray}, {give away}, {rat}, {grass}, {shit}, {snitch},
         {stag}]
     [also: {shopping}, {shopped}]

shopped
     See {shop}