set square

British

noun

a thin flat piece of plastic, metal, etc, in the shape of a right-angled triangle, used in technical drawing

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Jets improved to 4-0 this season against Ottawa, with the teams set square off again Saturday night.

From Seattle Times

He had a way of looking straight at the person he was talking to, his shoulders set square, his hands on his knees, his eyes unwavering, that always struck others as honest and open.

From Literature

He is depicted on his tomb with his tools - a set square and a plumb line.

From BBC

The symbolism of the stonemason is still widespread in freemasonry, with set square and compasses frequently appearing on aprons and other ornaments, often with the addition of an "all-seeing" eye.

From The Guardian

The human eye was the best tool, he would say, "better than the tape measure, the set square and the water level".

From The Guardian

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023