1. To form with four sides and four right angles. Spenser.
2. To form with right angles and straight lines, or flat surfaces; as, to square mason's work.
3. To compare with, or reduce to, any given measure or standard. Shak.
4. To adjust; to regulate; to mold; to shape; to fit; as, to square our actions by the opinions of others. Square my trial To my proportioned strength. Milton.
5. To make even, so as leave no remainder of difference; to balance; as, to square accounts.
6. (Math.)
Defn: To multiply by itself; as, to square a number or a quantity.
7. (Astrol.)
Defn: To hold a quartile position respecting.
The icy Goat and Crab that square the Scales. Creech.
8. (Naut.)