Definitions
1.nounAn introductory or preliminary performance or event.
2.nounA short, free-form piece of music, originally one serving as an introduction to a longer and more complex piece; later, starting with the Romantic period, generally a stand-alone piece.
3.nounA standard module or library of subroutines and functions to be imported, generally by default, into a program.
4.nounA forerunner to anything.
5.verbTo introduce something, as a prelude.
6.verbTo play an introduction or prelude; to give a prefatory performance.