noun

• (typography, obsolete) Clipping of quadrat.
  "“Quadrats, sir. We call 'em quads.” […] Quads are the spaces left between the paragraphs that come white on the paper. If you look here, at this page that is set-up, you will see that they are deeper than the spaces left between the words and letters—regular little trenches."
• (typography, obsolete) Clipping of quadrat.
• (typography, obsolete) Clipping of quadrat.
• (informal) A quadrangle (quadrangular courtyard).
  "Gilt-backed books on gilded shelf or table caught the eye, and as you turned your glance from the luxurious interiors to the well-shorn lawn in the Quad with its classic fountain also gilded by sunbeams, the mental vision saw plainly written over the whole "The Union of Luxury and Learning.""

adj

• (paper) Quadrille, marked with squares.

verb

• (typography, letterpress typography, transitive, intransitive) To fill spaces in a line of type with quads. Also quad out.
• (typography, phototypesetting and digital typesetting, transitive, intransitive) To align text with the left or right margin, or centre it.
• (transitive) To twist four individually insulated conductors together as two pairs of twisted wires that are then twisted together.
  "Can you "quad" the cable?"
• (intransitive) To ride a quad bike.
  "visibility was perfect and mud was plentiful for our quadding adventure."

name

• (informal) An informal strategic forum between the United States, Japan, Australia, and India, focused on Asian security matters.
  "China has seen it as a threat to its dominance in the region, saying the Quad is a U.S. attempt to create an Asian version of the North Atlantic Treaty Organization directly aimed at counterbalancing its interests."
• (by extension) A grouping of the United States, Japan, Australia, and India.
  "But coordination in shifts in rates by global groupings like the Group of 7, the Indo-Pacific “Quad” and perhaps the Shangri-La Dialogue in Asia would send a powerful message."