from The American Heritage® Dictionary of the English Language, 5th Edition.

  • transitive verb To estimate or predict in advance, especially to predict (weather conditions) by analysis of meteorological data. synonym: predict.
  • transitive verb To serve as an advance indication of; foreshadow.
  • noun A prediction, as of coming events or conditions.

from The Century Dictionary.

  • noun Previous contrivance or provision; predetermination.
  • noun Foresight; prescience; prevision.
  • noun Synonyms Prudence, Providence, etc. (see wisdom); forethought, anticipation.
  • To cast or contrive beforehand; plan before execution.
  • To consider or calculate beforehand; discern beforehand.
  • To make a plan or scheme in advance; contrive something beforehand.
  • To foresee; surmise.
  • noun Specifically, in meteorology, a statement of the expected weather. Official daily weather forecasts were first published by Fitzroy in England in 1861.

from the GNU version of the Collaborative International Dictionary of English.

  • intransitive verb To contrive or plan beforehand.
  • noun Previous contrivance or determination; predetermination.
  • noun A calculation predicting future events; the foresight of consequences, and provision against them; prevision; premeditation.
  • transitive verb To plan beforehand; to scheme; to project.
  • transitive verb To foresee; to calculate beforehand, so as to provide for.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb To estimate how a condition will be in the future.
  • noun An estimation of a future condition.
  • noun A prediction of the weather.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb predict in advance
  • verb indicate by signs
  • noun a prediction about how something (as the weather) will develop
  • verb judge to be probable


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English forecasten, to plan beforehand : fore-, fore- + casten, to throw, calculate, prepare; see cast.]


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  • As compared to predicting after the fact.

    October 14, 2008