Definition of "piper"

piper¹

/ˈpaɪ.pə/

noun
plural pipers
1. A musician who plays a pipe.
2. A bagpiper.
  Quotations
  At Glasgow Central and Edinburgh Waverley, the sounding of train horns was followed by a lone piper playing When the Battle's Over.
  2020 May 20, “Railway remembers VE Day with a series of tributes”, in Rail, page 15
3. A baby pigeon.
4. A common European gurnard (Trigla lyra), having a large head, with prominent nasal projection, and with large, sharp, opercular spines.
5. A sea urchin (Cidaris cidaris) with very long spines, native to the American and European coasts.
6. (slang, obsolete) A broken-winded hack horse.

piper²

noun
1. Archaic form of pepper.