T square

noun

Definition of T square

: a ruler with a crosspiece or head at one end used in making parallel lines

First Known Use of t square

1785


T SQUARE Defined for English Language Learners

T square

noun

Definition of T square for English Language Learners

  • : a tool that is shaped like the letter T and that is used to draw parallel lines and right angles


Learn More about t square


Seen and Heard

What made you want to look up T square? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to lessen the seriousness or strength of

Get Word of the Day daily email!

Test Your Vocabulary

What's That From? A Word Origin Quiz

  • turris-babel-by-athanasius-kircher
  • What language gave the word robot to English?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!