1. a person who plays a pipe or pipes, especially bagpipes
2. a person who leads or influences others
Usage: often in the phrase ‘he who pays the piper calls the tune’

Examples

• The Scottish piper played traditional Highland melodies.
• A street piper entertained tourists with folk songs.
• The Pied Piper led the children out of town with his music.
• He who pays the piper calls the tune in this company.
• The bagpipe piper wore traditional Highland dress.
• A skilled piper can make the instrument sing beautifully.