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(nine-ti-eth) 3 syllables

Definition

adjective. constituting number ninety in a sequence; 90th. it can also refer to one part in ninety equal parts.

Example Sentence

Today is my grandma's ninetieth birthday.

More Example Sentences

The ninetieth anniversary of the school was marked by special events.

Synonyms

90th; ordinal; tenth

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ninetieth
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Rhymes

  • ninetieth
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