Sentence:  The gala is the Thrift Shop 's annual bundle party and , as all Thrift Shop friends know , that means the admission is a bundle of used clothing in good condition , contributions of household equipment , bric-a-brac and such to <WSD>stock</WSD> the shelves at the shop 's headquarters at 1213 Walnut St. . 
Meaning of the word marked with <WSD> tags:  have on hand