Distribution means the passing out of something. A teacher is in charge of distribution of corrected essays. A lunch lady manages the distribution of food.
Distribution can also refer to the way something is distributed. In our country, many are concerned about the distribution of wealth, which is increasingly concentrated in the hands of the richest few. When you put money in a brokerage account, it's called a contribution. Taking it out is a distribution.
Definitions of distribution
1
n the act of distributing or spreading or apportioning
 Types:
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assigning, assignment
the act of distributing something to designated places or persons

redistribution
distributing again

dispensation
the act of dispensing (giving out in portions)

allocation, allotment, apportioning, apportionment, assignation, parceling, parcelling
the act of distributing by allotting or apportioning; distribution according to a plan

deal
the act of distributing playing cards

revenue sharing
distribution of part of the federal tax income to states and municipalities

shareout, sharing
a distribution in shares

grant, subsidisation, subsidization
the act of providing a subsidy

allocation, storage allocation
(computer science) the assignment of particular areas of a magnetic disk to particular data or instructions

reallocation, reallotment, reapportionment
a new apportionment (especially a new apportionment of congressional seats in the United States on the basis of census results)

deal
the act of apportioning or distributing something

rationing
the act of rationing

parcel, portion, share
the allotment of some amount by dividing something

misdeal
an incorrect deal

generosity, unselfishness
acting generously

gift, giving
the act of giving
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act, deed, human action, human activity
something that people do or cause to happen
n the spatial or geographic property of being scattered about over a range, area, or volume
“worldwide in
distribution”
“the
distribution of nerve fibers”
“in complementary
distribution”
 Synonyms:
 dispersion
 Antonyms:

compactness, concentration, denseness, density, tightness
the spatial property of being crowded together
 Types:
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complementary distribution, complementation
(linguistics) a distribution of related speech sounds or forms in such a way that they only appear in different contexts

diaspora
the dispersion or spreading of something that was originally localized (as a people or language or culture)

diffusion, dissemination
the property of being diffused or dispersed

innervation
the distribution of nerve fibers to an organ or body region

scatter, spread
a haphazard distribution in all directions

diffuseness
the spatial property of being spread out over a wide area or through a large volume
 Type of:

spacing, spatial arrangement
the property possessed by an array of things that have space between them
n the commercial activity of transporting and selling goods from a producer to a consumer
 Type of:

commerce, commercialism, mercantilism
transactions (sales and purchases) having the objective of supplying commodities (goods and services)
n (statistics) an arrangement of values of a variable showing their observed or theoretical frequency of occurrence
 Synonyms:
 statistical distribution
 Types:
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equidistribution
a flat distribution having equal frequencies of occurrence

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

acceptance sampling
a statistical procedure for accepting or rejecting a batch of merchandise or documents; involves determining the maximum number of defects discovered in a sample before the entire batch is rejected

random sample
a sample in which every element in the population has an equal chance of being selected

proportional sample, representative sample, stratified sample
the population is divided into strata and a random sample is taken from each stratum
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arrangement, organisation, organization, system
an organized structure for arranging or classifying