Definitions of piper:

• noun:   someone who plays the bagpipe
• noun:   type genus of the Piperaceae: large genus of chiefly climbing tropical shrubs
• name:  A surname (common: 1 in 11111 families; popularity rank in the U.S.: #1298)
• name:  A female given name (rare: 1 in 50000 females; popularity rank in the U.S.: #2292)