a unit of area measurement equal to a square measuring one mile on each side; 2.59 square kilometers. 2 , sq. mi.
noun 1. a unit of area measurement equal to a square measuring one millimeter on each side. 2 , sq. mm. Abbreviation: mm.
noun 1. a number that is the square of another integer, as 1 of 1, 4 of 2, 9 of 3, etc. square number noun 1. an integer, such as 1, 4, 9, or 16, that is the square of an integer
noun, Logic. 1. a diagrammatic representation of the opposition of categorical propositions. square of opposition noun 1. See opposition (sense 10b)
noun 1. a starting point; initial stage or step: If this plan fails, we’ll have to go back to square one. square John