To put into a specific order or relation; dispose: arrange shoes in a neat row. To plan or prepare for: arrange a picnic. To bring about an agreement concerning; settle: "It has been arranged for him by his family to marry a girl of his own class\u201d ( Edmund Wilson). Music To reset (a composition) for other instruments or voices or as another style of performance. To come to an agreement. To make preparations; plan: arrange for a big wedding.