Definition of T-square in US English:


(also T square)


  • A T-shaped instrument for drawing or testing right angles.

    • ‘Place a T-square at the top of the first lift and place a 30-60-degree triangle so that the 30-degree angle is on the T-square at the first insertion line.’
    • ‘Rectangles come naturally when you draw with a T-square on a drawing board.’
    • ‘For right angle openings, use a drywall T-square or a chalk line to mark the board for cutting.’
    • ‘Before the introduction of photo-setting, each new inductee into the profession spent hours at their first job learning to draw letters using a T-square and a triangle.’
    • ‘To straighten fabric or mark a true right angle, use a T-square.’



/ˈti ˌskwɛ(ə)r//ˈtē ˌskwe(ə)r/