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Adjective: thirteenth  ,thur'teenth
  1. Coming next after the twelfth in position
    - 13th
Noun: thirteenth  ,thur'teenth
  1. Position 13 in a countable series of things
    "She lives on the thirteenth floor of the building"

Derived forms: thirteenths

See also: ordinal

Type of: rank

Encyclopedia: Thirteenth