#1 foursquare n. [square] (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon; "you can compute the area of a square if you know the length of its sides". wn
#2 foursquare s. characterized by firm and unwavering conviction; "a foursquare refusal to yield". wn
#3 foursquare r. in a square position; "the building stood foursquare". wn
#4 foursquare r. [squarely, straightforwardly] with firmness and conviction; without compromise; "he stood foursquare for religious liberty and toleration"- C.G.Bowers; "dealt straightforwardly with all issues". wn
vizzz