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forty-fifth

[fawr-tee-fifth or, often, -fith]
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adjective
  1. next after the forty-fourth; being the ordinal number for 45.
  2. being one of 45 equal parts.
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noun
  1. a forty-fifth part, especially of one (1/45).
  2. the forty-fifth member of a series.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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