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  • 12 Letter Words Containing O and Ending in ISM

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    polymorphism

    29

    cryptorchism

    28

    hemimorphism

    28

    homomorphism

    28

    hylomorphism

    28

    psychologism

    28

    apocalyptism

    27

    collectivism

    27

    expansionism

    27

    monomorphism

    27

    noctambulism

    27

    pleomorphism

    27

    somnambulism

    27

    chemotropism

    26

    chromaticism

    26

    commensalism

    26

    hypogonadism

    26

    metamorphism

    26

    sycophantism

    26

    allomorphism

    25

    behaviourism

    25

    connubialism

    25

    endomorphism

    25

    episcopalism

    25

    monorchidism

    25

    Showing 25 of 81 words

    This list of 12 letter words containing O and ending in ISM is great for building up your vocabulary. It’s also fantastic for landing those big scoring plays in your favorite word games. Enjoy playing Words With Friends®? Unload a massive double or triple word score against your opponent when you unleash just the right word in just the right place. Pave the path to victory with our advanced search features. And be sure to check the right dictionary in the search options so you’ll only get valid words in your chosen game!

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