trilateral, quadripartite, triangular, tripartite, equilateral triangle, pentagonal, equilateral, asean, partite, triadic, polycentric, conic, troika, bilateral, ellipsoid, semicircles, triangles, dodecahedron, rhombus, isosceles triangle, hexagonal, parallelogram, confederal, interlocking, concentric, geometrical, eap, equidistance, seato, polyhedron, tetrahedrons, ovoid, cuboid, octahedral, plurilateral, symmetrical, concretise, trapezoid, cento, cruciform, antiparallel, hexagon, diarchy, asymmetrical, rhomboids, bipartite, octagons, rectangular, isosceles, concave, calyx, hexagram, centripetal, interflow, axially, delimit, hypotenuse, latitudinal, duumvirate, arcuate, diagonals, concertation, equidistant, elliptic, ideational, quadri, dialogical, transversal, unequals, symmetric, epicondyle, crosspieces, rebus, lunate, oblong, ellipse, quincunx, nato, geostrategic, circular, monistic, triangular prism, architrave, crosshatch, acromion, openwork, tibialis posterior, sextile, twining, longways, westernization, complementation, subspace, fructification, asterism, nebulosity, ovate, neuralgic, laminae, triumphal arch, horizontal, scalene, polygon, triangle, quadrilaterals, rectangle, polygons, pentagon, quadrangle, tetrahedron, abc, parallelograms, square, circle, horseshoe, inclosure, rhomboidal, quadrangular, polygonal, trapezoidal, rhomboid, rhombic, shaped, quadrate, oval, squarish, crescentic, cuboidal, rectilinear

parallelogram, trapezium, trapezoid

corvus, crow, gaff, gaff-headed sail, gaffsail, parallelogram, serratus posterior inferior, serratus posterior superior, shear, tetragonal, trapezium, trapezoid

polygon, polygonal shape

four-sided, many-sided, multilateral, quadrangle, tetragon