arrangement
ar·range·ment
 /əˈreınʤmənt/  noun  ,  pl   -ments
  1 : the way that things or people are organized for a particular purpose or activity : the way that things or people are arranged
   [  noncount  ] They changed the arrangement of furniture in the room.
    the dictionary's alphabetical arrangement [=ordering] of words
    the collection and arrangement of data
   [  count  ] a chronological arrangement of historical events
    We tried several different arrangements of the parts/components/elements.
    Having my brother and his wife living nearby was an ideal arrangement for our family.
    The family had very unusual living arrangements.
    “What were your sleeping arrangements?” “I slept on the bed while he slept on the floor.”
    We'll have to change the seating arrangements for the dinner party.
  2 : something that is done to prepare or plan for something in the future
   [  count  ]
    — usually plural
    She has her secretary handle all of her travel arrangements.
    He helped his mother with his father's funeral arrangements.
   
    — often used with make
    The city made special arrangements [=preparations] for the Queen's visit.
    All of the arrangements have been made in advance.
    They made arrangements to meet each other at the restaurant.
    We provide breakfast and dinner, but you make your own arrangements for lunch.
   
   [  noncount  ] Her job includes arrangement of her boss's travel plans.
  3 [  count  ] : a usually informal agreement
   There was an unusual political arrangement between the two countries.
   business/financial arrangements
   I'm sure we can come to some arrangement.
  — often + with
   Our band has an arrangement with the club's manager.
   The company made an arrangement with the college to supply all of its computers.
  4 [  count  ] : something made by putting things together and organizing them
   a flower/floral arrangement = an arrangement of flowers
  5 [  count  ] music : a piece of music that has been changed so that it can be performed by particular types of voices or instruments
   orchestral/vocal arrangements
   an arrangement for the guitar
   a rock arrangement of an old blues song