stapler
1 of 2noun (1)
sta·pler ˈstā-p(ə-)lər 
: one that deals in staple goods or in staple fiber
stapler
2 of 2noun (2)
: one that inserts staples
especially : a small usually hand-operated device for inserting wire staples
Word History
First Known Use
Noun (1)
circa 1533, in the meaning defined above
Noun (2)
circa 1909, in the meaning defined above
Kids Definition
stapler
noun
sta·pler ˈstā-plər
: a device that fastens using staples