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

  • adj. Consisting of three parts or members.
  • adj. Three times as much in size, strength, number, or amount.
  • adj. Music Having three beats to a measure.
  • n. A number or quantity three times as great as another.
  • n. A group or set of three; a triad.
  • n. Baseball See three-base hit.
  • n. See trifecta.
  • transitive v. To make three times as great in number or amount.
  • intransitive v. To be or become three times as great in number or amount.
  • intransitive v. Baseball To make a three-base hit.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Made up of three related elements, often matching
  • adj. Three times the quantity
  • adj. Designed for three users
  • adj. Folded in three; composed of three layers
  • adj. Having three aspects; very ambiguous.
  • adj. Of time, three times as fast as very fast.
  • n. A drink with three portions of alcohol.
  • n. A hamburger with three patties.
  • n. A three-base hit
  • n. A takeout shot in which three stones are removed from play.
  • n. A sequence of three elements or 3-tuple.
  • v. To multiply by three
  • v. To get a three-base hit
  • v. To become three times as large

from the GNU version of the Collaborative International Dictionary of English

  • adj. Consisting of three united; multiplied by three; threefold.
  • adj. Three times repeated; treble. See Treble.
  • adj. One of three; third.
  • intransitive v. To make threefold, or thrice as much or as many; to treble.

from The Century Dictionary and Cyclopedia

  • Consisting of three; threefold; characterized by a subdivision into three parts or into threes: as, a triple knot; a triple window.
  • Three times repeated; treble.
  • Being one of three; third.
  • A league between France, Great Britain, and the Netherlands, formed in 1717, and directed chiefly against Spain. After the accession to it of Austria in 1718 it was known as the Quadruple Alliance.
  • An alliance between Germany, Austria-Hungary, and Italy, formed about 1883, and designed to check Russia and also France. It is chiefly the creation of Prince Bismarck, and by its provisions the three powers are bound to support one another in certain contingencies. Its influence has succeeded to that of the League of the Three Emperors (the German, Austrian, and Russian), which was also largely the creation of Bismarck.
  • A bearing representing three royal or imperial crowns set one upon another in pale. Such a bearing, having also clouds at the base, forms part of the arms of the London Drapers' Company.
  • n. In music, same as treble.
  • n. plural In change-ringing, changes rung on seven bells.
  • To make threefold or thrice as much or as many; treble.
  • To be thrice as great or as many as.
  • To alter from single or double to triple action, as a single or double expansion-engine into a triple expansion-engine; fit up with triple expansion-engines, as a vessel which has previously used a single or double expansion-engine.
  • To increase threefold.
  • n. In geometry: A triad of points.
  • n. A triad of systoms of orthogonal surfaces.

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

  • adj. three times as great or many
  • adj. having three units or components or elements
  • v. increase threefold
  • v. hit a three-base hit
  • n. a set of three similar things considered as a unit
  • n. a quantity that is three times as great as another
  • n. a base hit at which the batter stops safely at third base


Middle English, from Old French, from Latin triplus (on the model of Greek triploos) : Latin tri-, three; + -plus, -fold.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Middle English, from Latin triplus. (Wiktionary)


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