shopper

from WordNet (r) 3.0 (2006)
shopper
    n 1: someone who visits stores in search of articles to buy
    2: a commercial agent who shops at the competitor's store in
       order to compare their prices and merchandise with those of
       the store that employs her
    
from The Collaborative International Dictionary of English v.0.48
Shopper \Shop"per\, n.
   One who shops.
   [1913 Webster]
    

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