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Definition of "fourth" []

  • The ordinal number matching the number four in a series. (noun)
  • One of four equal parts. (noun)
  • Music A tone four degrees above or below a given tone in a diatonic scale. (noun)
  • Music The interval between two such tones. (noun)
  • Music The harmonic combination of these tones. (noun)
  • Coming after the third in order, position, time, etc. Often written: 4th (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • (as noun) (adjective)
  • Denoting the fourth forward ratio of a gearbox in motor vehicles (adjective)
  • The interval between one note and another four notes away from it counting inclusively along the diatonic scale (noun)
  • One of two notes constituting such an interval in relation to the other (noun)
  • The fourth forward ratio of a gearbox in a motor vehicle (noun)
  • After the third person, position, event, etc (adverb)

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Use "fourth" in a sentence
  • "Thus, 104603 means that we place a pig in the first row of the _first_ column, in no row of the _second_ column, in the fourth row of the _third_ column, in the sixth row of the _fourth_ column, in no row of the _fifth_ column, and in the third row of the"
  • "The term fourth estate is frequently attributed to the nineteenth century historian Carlyle, though he himself seems to have attributed it to Edmund Burke: Burke said there were Three Estates in Parliament; but, in the Reporters 'Gallery yonder, there sat a Fourth Estate more important than they all."
  • "Thus far we have treated of the meaning of the term fourth dimension as it is used in mathematics."