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by someone's reckoning

idiom

Definition of by someone's reckoning

: according to someone's calculations
  • By her reckoning, he should be in his 80s by now.

Word by Word Definitions

someone play

  1. : some person : somebody

See the full definition of someone
reckoning play

  1. : the act or an instance of reckoning: such as

  2. : account, bill

  3. : computation

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