The product of a number or quantity multiplied by itself; the second power of a number, value, term or expression.
“64 is the square of 8.”
(1950s slang) A socially conventional or conservative person; a person who has little or no interest in the latest fads or trends: still sometimes used in modern terminology.
“Why do you always wear a tie? Don't be such a square!”
adjective
Of numbers formed by multiplying two equal numbers.
“9 is a square number.”
Having a shape broad for the height, with angular rather than curving outlines.