English numbers (edit)
90
 ←  8 9 10  → 
    Cardinal: nine
    Ordinal: ninth
    Multiplier: nonuple
    Fractional: ninth

Pronunciation change

Adjective change

Positive
ninth

Comparative
none

Superlative
none

  1. (ordinal number) The ninth thing is something that is number nine (9) in order.

See also change

Noun change

Singular
ninth

Plural
ninths

  1. (countable) A ninth of something is one of nine equal parts of that thing.
    Two is one ninth of eighteen.