From WordNet (r) 3.0 (2006) [wn]:
shopping
n 1: searching for or buying goods or services; "went shopping
for a reliable plumber"; "does her shopping at the mall
rather than down town"
2: the commodities purchased from stores; "she loaded her
shopping into the car"women carrying home shopping didn't
give me a second glance"
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Shop \Shop\, v. i. [imp. & p. p. Shopped; p. pr. & vb. n.
Shopping.]
To visit shops for the purpose of purchasing goods.
[1913 Webster]
He was engaged with his mother and some ladies to go
shopping. --Byron.
[1913 Webster]