DictionaryAI

eighteenths

noun
ay-TEENTHS/ˌeɪˈtiːnθs/

1 meaning of eighteenths

Practice

  1. 1
    noun
    Plural of eighteenth.

    Adding one ninth and one eighteenth gives you three eighteenths, or one sixth.

    Five eighteenths of the harvest were set aside for the winter market.

    Note

    Only the noun uses of eighteenth take a plural; the adjective, as in the eighteenth floor, never does. Most often the plural names fractions, following a numerator above one (five eighteenths, seventeen eighteenths), and terms sharing that denominator add directly. It can also count positions or, informally, birthday parties: two friends whose eighteenths fell in the same week.

eighteenths is a form of eighteenth

eighteenth, noun: The person or thing occupying position number eighteen in a sequence. Full entry

Forms
eighteentheighteenths plural
Spelling
eighteenth → eighteenths: add -s
Sound
The ending sounds like /s/.

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