• Arch.

    Full definition of arch.

    Adjective

    arch.

    1. Abbreviation of archaic
    2. Abbreviation of architectural

    Noun

    arch.

    (countable and uncountable; plural arch.s)
    1. (uncountable) Abbreviation of archaism
    2. (uncountable) Abbreviation of archery
    3. (countable) Abbreviation of archipelago
    4. (countable) Abbreviation of architect
    5. (uncountable) Abbreviation of architecture

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