#1 arrangement n. [agreement] the thing arranged or agreed to; "they made arrangements to meet in Chicago". wn
#2 arrangement n. an orderly grouping (of things or persons) considered as a unit; the result of arranging; "a flower arrangement". wn
#3 arrangement n. [organization, organisation, system] an organized structure for arranging or classifying; "he changed the arrangement of the topics"; "the facts were familiar but it was in the organization of them that he was original"; "he tried to understand their system of classification". wn
#4 arrangement n. [placement] the spatial property of the way in which something is placed; "the arrangement of the furniture"; "the placement of the chairs". wn
#5 arrangement n. [musical arrangement] a piece of music that has been adapted for performance by a particular set of voices or instruments. wn
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