geometry A plane rectangle with four equal sides and four right angles; a four-sided regular polygon.

synonym: square.

Dutch: carré, vierkant
Polish: kwadrat

Characterized by firm and unwavering conviction.

Roget 244: angular, bent, crooked, aduncous^†, uncinated^†, aquiline, jagged, serrated; falciform^†, falcated^†; furcated^†, forked, bifurcate, zigzag; furcular^†; hooked; dovetailed; knock kneed, crinkled, akimbo, kimbo^†, geniculated^†; oblique etc. 217.    fusiform [Micro.], wedge-shaped, cuneiform; cuneate^†, multangular^†, oxygonal^†; triangular, trigonal^†, trilateral; quadrangular, quadrilateral; foursquare; rectangular, square, multilateral; polygonal etc. n.; cubical, rhomboid, rhomboidal, pyramidal.    ... show more

In a square position.

With firmness and conviction; without compromise:
— He stood foursquare for religious liberty and toleration.

synonyms: squarely, straightforwardly.