Definition of "Arrangement" :

noun: the act of arranging and adapting a piece of music

noun: the spatial property of the way in which something is placed

"The arrangement of the furniture."

noun: an organized structure for arranging or classifying

"He changed the arrangement of the topics."

noun: the thing arranged or agreed to

"They made arrangements to meet in Chicago."

noun: a piece of music that has been adapted for performance by a particular set of voices or instruments

noun: an orderly grouping (of things or persons) considered as a unit; the result of arranging

"A flower arrangement."