• A rough calculation or assessment of the value, size, or cost of something.
  • A document (or verbal notification) specifying how much a job is likely to cost.
  • An upper limitation on some positive quantity.


  • To calculate roughly, often from imperfect data.
  • To judge and form an opinion of the value of, from imperfect data.


Similar words


  • Borrowed from Latin aestimatus, past participle of aestimō, older form aestumo; from Old Latin *ais-temos, meaning one in the Roman Republic who mints money. See also the doublet esteem, as well as aim.

Modern English dictionary

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