1.Definition: characterized by honesty and fairness
"A square deal"
2.Definition: having four equal sides and four right angles or forming a right angle
"A square peg in a round hole", "A square corner"
3.Definition: leaving no balance
"My account with you is now all square"
4.Definition: providing abundant nourishment
"Four square meals a day"
5.Definition: rigidly conventional or old-fashioned
6.Definition: without evasion or compromise
"A square contradiction"