English Explanatory Dictionary

thirteenth

English dictionary entry

Meanings

adj
  1. The ordinal form of the number thirteen.
noun
  1. The person or thing in the thirteenth position.
  2. One of thirteen equal parts of a whole.
  3. The interval comprising an octave and a sixth.
  4. The thirteenth day of a month.

Pronunciation

/ˌθɜːˈtiːnθ/ /ˌθɝˈtiːnθ/ En-us-thirteenth.ogg

Word forms

thirteenth thirteenths

Etymology

Inherited from Middle English thrittenthe, thrittethe, from Old English þrēottēoþa; equivalent to thirteen + -th (ordinal suffix).

Synonyms

13th XIIIth XIII

Derived words

Friday the thirteenth thirteenth grade thirteenth reason thirteenth reason why
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