When you organize things in an orderly way, the result is called an arrangement. If you admire your friend's arrangement of his living room furniture, you might go home and make a similar arrangement.

Your brother might keep an arrangement of Lego creations on his desk, and you could put an arrangement of wildflowers in a vase in the middle of your kitchen table. Another kind of arrangement is one you make when you negotiate an agreement with another person: "We have an arrangement — she gives me a ride to school and I walk her dog in the afternoon." The Old French root, arengier, means "to set in a row."

Definitions of arrangement
  1. noun
    an orderly grouping (of things or persons) considered as a unit; the result of arranging
    “a flower arrangement
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    floral arrangement, flower arrangement
    a decorative arrangement of flowers
    contrivance, lash-up
    any improvised arrangement for temporary use
    a temporary arrangement erected around a building for convenience of workers
    an orderly arrangement
    categorisation, categorization, classification
    a group of people or things arranged by class or category
    aestivation, estivation
    (botany) the arrangement of sepals and petals in a flower bud before it opens
    tableau, tableau vivant
    a group of people attractively arranged (as if in a painting)
    (botany) the arrangement of veins in a leaf
    (botany) the arrangement of young leaves in a leaf bud before it opens
    an arrangement of people or things acting as a unit
    order, ordering, ordination
    logical or comprehensible arrangement of separate elements
    bacteria order
    an order of bacteria
    bouquet, corsage, nosegay, posy
    an arrangement of flowers that is usually given as a present
    flower chain
    flowers strung together in a chain
    flower arrangement consisting of a single branch or shoot bearing flowers and foliage
    patch, temporary hookup
    a connection intended to be used for a limited time
    chaplet, coronal, garland, lei, wreath
    flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes
    word order
    the order of words in a text
    dichotomy, duality
    being twofold; a classification into two opposed parts or subclasses
    being threefold; a classification into three parts or subclasses
    a formation of aircraft in flight
    table, tabular array
    a set of data arranged in rows and columns
    (mathematics) a rectangular array of quantities or expressions set out by rows and columns; treated as a single element and manipulated according to rules
    military formation
    a formation of troops
    the offensive football players who line up behind the linemen
    the defensive football players who line up behind the linemen
    a formation of people or things one behind another
    a formation of people or things one beside another
    a linear array of numbers, letters, or symbols side by side
    a vertical array of numbers or other information
    genetic code
    the ordering of nucleotides in DNA molecules that carries the genetic information in living cells
    the ordering of genes in a haploid set of chromosomes of a particular organism; the full DNA sequence of an organism
    similar things placed in order or happening one after another
    a complete and impressive array
    an arrangement of similar objects in a row or in tiers
    the middle of a military or naval formation
    flank, wing
    the side of military or naval formation
    the front of a military formation or procession
    the back of a military formation or procession
    an ordered array of the components of an emission or wave
    type of:
    group, grouping
    any number of entities (members) considered as a unit
  2. noun
    the spatial property of the way in which something is placed
    “the arrangement of the furniture”
    synonyms: placement
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    a particular spatial arrangement
    (architecture) the arrangement of columns (especially freestanding columns) in a structure
    composing, composition
    the spatial property resulting from the arrangement of parts in relation to each other and to the whole
    the arrangement of windows in a building
    balance, proportion, proportionality
    harmonious arrangement or relation of parts or elements within a whole (as in a design)
    the spatial property possessed by an arrangement or position of things in a straight line or in parallel lines
    the spatial property of things that are not properly aligned
    an arrangement of branching parts
    spacing, spatial arrangement
    the property possessed by an array of things that have space between them
    an arrangement of two or more objects or persons one behind another
    the rectangular formation of parallel scanning lines that guide the electron beam on a television screen or a computer monitor
    rig, rigging
    formation of masts, spars, sails, etc., on a vessel
    (tenpin bowling) a divided formation of pins left standing after the first bowl
    proper alignment; the property possessed by something that is in correct or proper alignment
    without obstructions to passage or view
    the property created by the space between two objects or points
    dispersion, distribution
    the spatial or geographic property of being scattered about over a range, area, or volume
    compactness, concentration, denseness, density, tightness
    the spatial property of being crowded together
    type of:
    position, spatial relation
    the spatial property of a place where or way in which something is situated
  3. noun
    an organized structure for arranging or classifying
    “he changed the arrangement of the topics”
    synonyms: organisation, organization, system
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    classification system
    a system for classifying things
    an artificial or unnatural or obviously contrived arrangement of details or parts etc.
    coordinate system, frame of reference, reference frame, reference system
    a system that uses coordinates to establish position
    data structure
    (computer science) the organization of data (and its storage allocations in a computer)
    design, plan
    an arrangement scheme
    distribution, statistical distribution
    (statistics) an arrangement of values of a variable showing their observed or theoretical frequency of occurrence
    genetic map
    graphical representation of the arrangement of genes on a chromosome
    kinship system
    (anthropology) the system of social relationships that constitute kinship in a particular culture, including the terminology that is used and the reciprocal obligations that are entailed
    an arrangement of points or particles or objects in a regular periodic pattern in 2 or 3 dimensions
    living arrangement
    an arrangement to allow people (or ideas) to coexist
    (computer science) a rigorous and exhaustive organization of some knowledge domain that is usually hierarchical and contains all the relevant entities and their relations
    a system of timekeeping that defines the beginning and length and divisions of the year
    Dewey decimal classification, Dewey decimal system, decimal system of classification
    a system used by libraries to classify nonfictional publications into subject categories; the subject is indicated by a three-digit numeral and further specification is given by numerals following a decimal point; publications are shelved by number
    Cartesian coordinate system
    a coordinate system for which the coordinates of a point are its distances from a set perpendicular lines that intersect at the origin of the system
    a flat distribution having equal frequencies of occurrence
    configuration, constellation
    an arrangement of parts or elements
    Bravais lattice, crystal lattice, space lattice
    a 3-dimensional geometric arrangement of the atoms or molecules or ions composing a crystal
    hierarchical data structure, hierarchical structure
    a structure of data having several levels arranged in a treelike structure
    hierarchical classification system
    a classification system where entries are arranged based on some hierarchical structure
    file system, filing system
    a system of classifying into files (usually arranged alphabetically)
    grouping, pigeonholing
    a system for classifying things into groups
    rating system, scoring system
    a system of classifying according to quality or merit or amount
    ABO blood group system, ABO group, ABO system
    a classification system for the antigens of human blood; used in blood transfusion therapy; four groups are A and B and AB and O
    a plan or design of something that is laid out
    snare, trap
    something (often something deceptively attractive) that catches you unawares
    inertial frame, inertial reference frame
    a coordinate system in which Newton's first law of motion is valid
    space-time, space-time continuum
    the four-dimensional coordinate system (3 dimensions of space and 1 of time) in which physical events are located
    frequency distribution
    a distribution of observed frequencies of occurrence of the values of a variable
    Gaussian distribution, normal distribution
    a theoretical distribution with finite mean and variance
    Poisson distribution
    a theoretical distribution that is a good approximation to the binomial distribution when the probability is small and the number of trials is large
    sample, sample distribution, sampling
    items selected at random from a population and used to test hypotheses about the population
    Bernoulli distribution, binomial distribution
    a theoretical distribution of the number of successes in a finite set of independent trials with a constant probability of success
    hotel plan, meal plan
    a plan and a room rate for providing a room and meals to guests at a hotel
    lunar calendar
    a calendar based on lunar cycles
    lunisolar calendar
    a calendar based on both lunar and solar cycles
    solar calendar
    a calendar based on solar cycles
    type of:
    the complex composition of knowledge as elements and their combinations
  4. noun
    the thing arranged or agreed to
    “they made arrangements to meet in Chicago”
    synonyms: agreement
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    secret agreement
    something arranged in advance
    something reserved in advance (as a hotel accommodation or a seat on a plane etc.)
    type of:
    planning, preparation, provision
    the cognitive process of thinking about what you will do in the event of something happening
  5. noun
    a piece of music that has been adapted for performance by a particular set of voices or instruments
    synonyms: musical arrangement
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    an arrangement of a piece of music for performance by an orchestra or band
    the instruments called for in a musical score or arrangement for a band or orchestra
    type of:
    composition, musical composition, opus, piece, piece of music
    a musical work that has been created
  6. noun
    the act of arranging and adapting a piece of music
    synonyms: arranging, transcription
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    changing an arrangement
    instrumentation, orchestration
    the act of arranging a piece of music for an orchestra and assigning parts to the different musical instruments
    an arrangement of events that attempts to achieve a maximum effect
    juggle, juggling
    the act of rearranging things to give a misleading impression
    musical chairs
    a rearrangement that has no practical effect or significance
    a rearrangement in a different order
    (electricity) a rearrangement of the relative positions of power lines in order to minimize the effects of mutual capacitance and inductance
    type of:
    composing, composition
    musical creation
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