Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

combination square

noun

Definition of combination square

: a measuring tool consisting of a steel rule that slides through an adjustable protractor head or level or a center head which can be fixed at any point on the rule by a lock bolt and being usable as an inside or outside try square, a marking or depth gauge, level, miter square, plumb, and straightedge

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Learn More about combination square

Share combination square

Statistics for combination square

Look-up Popularity

Comments on combination square

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

Show Comments  Hide Comments 

WORD OF THE DAY

adjudicate

to settle judicially or to act as judge

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

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!

Words at Play

Ask the Editors

Word Games