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

  • adjective Quadraphonic.
  • adjective Quadruple.
  • noun Something having four identifiable or prominent parts or members.
  • noun Something capable of carrying or moving four people or things, as a chairlift.
  • noun A quadruplet.
  • noun A quadrangle.
  • noun A quadriceps muscle.

from The Century Dictionary.

  • noun A bicycle for four riders.
  • noun An abbreviation of quadrant, the unit of self-inductance;
  • noun of quadrate;
  • noun of quadruplex (telegraph).
  • noun See qued.
  • noun A quadrangle or court, as of a college.
  • noun The quadrangle of a prison where prisoners take exercise; hence, a prison; a jail. More commonly spelled quod.
  • noun In printing, a quadrat.
  • In printing, to fill with quadrats: as to quad out a line.
  • noun An abbreviation of quadruplex in telegraphy.
  • To put in prison.

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

  • adjective obsolete Evil; bad; baffling.
  • noun (Print.) A quadrat.
  • noun (Arch.), Cant or Slang A quadrangle; hence, a prison.

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

  • noun A blank metal block used to fill short lines of type.
  • noun A joke used to fill long days of setting type.
  • noun typography, phototypesetting and digital typesetting A keyboard command which aligns text with the left or right margin, or centred between them. In combination, as quad left, quad right, or quad centre.
  • verb transitive, intransitive To fill spaces in a line of type with quads. Also quad out.
  • verb typography, phototypesetting and digital typesetting, transitive, intransitive To align text with the left or right margin, or centre it.
  • noun informal A quadrangle (courtyard).
  • noun informal A quadruplet (infant).
  • noun short for quadrilateral
  • noun informal A quadriceps muscle.
  • noun Four shots of espresso.
  • noun A quad bike.
  • adjective Having four shots of espresso.
  • adjective poker slang Of or relating to quads.

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

  • noun a muscle of the thigh that extends the leg
  • noun one of four children born at the same time from the same pregnancy
  • noun (printing) a block of type without a raised letter; used for spacing between words or sentences
  • noun a rectangular area surrounded on all sides by buildings


from Wiktionary, Creative Commons Attribution/Share-Alike License

1785 Quads. pl, 1847 quads, verb 1876. From the abbreviation quad., for obsolete quadrat. Keyboard command is named for the verb sense.


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  • In current UK politics the quad is the group of the four politicians David Cameron and George Osborne (Conservative) and Nick Clegg and Danny Alexander (Liberal Democrat) that directs the policy of the coalition that constitutes the UK government.

    March 18, 2012