English Reference
noun

segregation

n.
US /ˌsɛɡɹəˈɡeɪʃən/ UK /sˌɛɡɹɪɡˈeɪʃən/ seg·re·ga·tion UK spelling segregations

  1. 01 B2 Upper Intermediate

    the policy or practice of keeping people of different races, religions, or genders separate in society.

    the enforced or systemic separation of different racial, ethnic, or social groups in a country, community, or establishment.

    Simple

    The civil rights movement fought to end racial segregation in public schools.

    In context

    The landmark court ruling aimed to dismantle the systemic segregation that had historically excluded minority groups from equal access to housing and education.

    Usage

    often used with the preposition 'of' followed by the group being separated.

  2. 02 B2 Upper Intermediate

    the act of separating things into different groups based on what they are.

    the act of setting apart or isolating items or data based on shared characteristics or qualities.

    Simple

    The segregation of recyclable materials from general waste helps the environment.

    In context

    Effective waste management requires the strict segregation of hazardous chemicals from organic matter to prevent environmental contamination.

    Usage

    uncountable in its general sense; countable when referring to specific instances.

  3. 03 C1 Advanced Technical Law

    keeping a prisoner away from other prisoners for safety or punishment.

    the isolation of a prisoner from the general population, often for disciplinary reasons or administrative protection.

    Simple

    The inmate was placed in segregation after he started a fight in the cafeteria.

    In context

    The warden ordered the prisoner into administrative segregation pending a full investigation into the security breach.

    Usage

    often appears in the phrase 'administrative segregation'.

    solitary confinementisolation
  4. 04 C2 Proficiency TechnicalAcademic Science

    the way parents pass only one of their two genes to their child.

    the separation of pairs of alleles or chromosomes during the formation of reproductive cells.

    Simple

    The law of segregation explains how traits are passed from parents to offspring.

    In context

    During meiosis, the segregation of homologous chromosomes ensures that each gamete receives a unique genetic profile.

    Usage

    usually refers to Mendelian inheritance or cell division.

    disjunction

He was reported to be very agitated, shouting and repeatedly pressing the emergency bell in his cell – he was then placed into segregation after getting into a fight with his cellmate.

The Guardian· 24 Aug 2026

Given the history of public education and segregation in the U.S., Black children and families are sometimes skeptical about traditional schooling.

The Conversation· 14 Jul 2026

1555. From Latin segregatio. Morphologically segregate + -ion.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated