n.1. The act or process of arranging: the arrangement of a time and place for the meeting.
2. The condition, manner, or result of being arranged; disposal: provided flowers and saw to their arrangement.
3. A collection of things that have been arranged: the circular arrangement of megaliths called Stonehenge.
4. often arrangements A provision or plan made in preparation for an undertaking: made arrangements for surgery.
5. An agreement or settlement; a disposition: Our dog will be looked after by arrangement with a neighbor.
6. Music a. An adaptation of a composition for other instruments or voices or for another style of performance.
b. A composition so arranged.