Integration occurs when separate people or things are brought together, like the integration of students from all of the district's elementary schools at the new middle school, or the integration of snowboarding on all ski slopes.

You may know the word differentiate, meaning "set apart." Integrate is its opposite. When you integrate things, you bring them together. So integration is the act of doing just that, like the integration of African-American students into mixed-race schools after segregation was outlawed in the 1950s, or the integration of computers in businesses that had previously only used paper-based record-keeping.

Definitions of integration
  1. noun
    the act of combining into an integral whole
    synonyms: consolidation
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    centralisation, centralization
    the act of consolidating power under a central control
    consolidating two or more things; union in (or into) one body
    amalgamation, merger, uniting
    the combination of two or more commercial companies
    vertical combination, vertical integration
    absorption into a single firm of several firms involved in all aspects of a product's manufacture from raw materials to distribution
    horizontal combination, horizontal integration
    absorption into a single firm of several firms involved in the same level of production and sharing resources at that level
    type of:
    combination, combining, compounding
    the act of combining things to form a new whole
  2. noun
    the action of incorporating a racial or religious group into a community
    synonyms: desegregation, integrating
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    segregation, sequestration
    the act of segregating or sequestering
    type of:
    group action
    action taken by a group of people
  3. noun
    an operation used in the calculus whereby the integral of a function is determined
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    type of:
    mathematical operation, mathematical process, operation
    (mathematics) calculation by mathematical methods
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