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  1. Twin - Wikipedia

    Identical twins can be difficult to visually distinguish especially when young, as demonstrated by brothers Billy and Bobby Mauch. …

  2. TWIN Definition & Meaning - Merriam-Webster

    The meaning of TWIN is either of two offspring produced in the same pregnancy. How to use twin in a sentence.

  3. Twin | Identical, Monozygotic, Dizygotic | Britannica

    Aug 7, 2026 · twin, either of two young who are simultaneously born from one mother. Twinning, common in many animals, is of two …

  4. Understanding Twins | Psychology Today

    Nov 10, 2025 · The special relationship between twins allows researchers to examine the differences between genetic and …

  5. Twin - Simple English Wikipedia, the free encyclopedia

    Twin Twins are two babies that are born at the same time. Human twins are two people that shared a single pregnancy, and one is …

  6. TWIN | definition in the Cambridge English Dictionary

    TWIN meaning: 1. either of two children born to the same mother on the same occasion: 2. one of two very similar…. Learn more.

  7. Twin - definition of twin by The Free Dictionary

    Define twin. twin synonyms, twin pronunciation, twin translation, English dictionary definition of twin. n. 1. One of two offspring born …

  8. Twin - Wikiwand

    Twins are two offspring produced by the same pregnancy. Twins can be either monozygotic ('identical'), meaning that they develop …

  9. What Are the Different Types of Twins?

    Mar 15, 2023 · Fraternal and identical are the most common types of twins. Other types include conjoined twins, half-identical twins …

  10. twin - Wiktionary, the free dictionary

    Aug 29, 2026 · twin (plural twins) Either of two people (or, less commonly, animals) who shared the same uterus at the same time; …