headstone, impost, keystone, springer, voussoir

entablature, bascule, archway, gothic arch, pilasters, cruciform, crossbeam, prow, oculus, crenellations, spandrels, campanile, corbel, spire, walkway, obelisk, balustrade, portcullis, transept, triumphal arch, lintel, rhomboid, fanlight, pediments, roofline, superstructure, allee, colonnade, stiffener, gnomon, railings, ogee, armature, tympanum, dihedral, concave, porticos, gable, swage, gable roof, parapets, toecap, pedestrian bridge, palisade, serifs, apse, sidewalls, falsework, quoins, isosceles, truss bridge, girders, cantilevering, clerestory, baluster, mansard, battlement, acanthus, newel post, isosceles triangle, scrollwork, mullion, spiral staircase, ashlar, gargoyle, cornice, nave, hipped roof, tenon, semicircles, gambrel roof, statue, dorsum, frenulum, understructure, circlet, mainmast, openwork, caryatids, dormer window, quatrefoil, flagstones, sheave, tubercle, equilateral triangle, reredos, acromion, diagonals, proscenium arch, ilium, condyles, facade, metopes, tracery, bell tower, wall, ostium, grillwork, brickwork, mihrab, lateral epicondyle, curvatures, arches, vault, vestibule, arcade, cone, dome, ramus, pier, balcony, buttress, cupola, cusp, pediment, rib, ring, square, arc, corbelled, arched, ogival, slab, cusped, crafty, trussed, cantilevered, moulded, oval, palladian, scroll, semicircular, socket, squarish, tooth, chamfered, chiseled

abutment arch, broken arch, camber, camber arch, corbel arch, diminished arch, flat arch, four-centered arch, haemal arch, hemal arch, instep, metatarsal arch, neural arch, pectoral arch, pier arch, pointed arch, rampant arch, round arch, rowlock arch, safety arch, scheme arch, scoinson arch, sconcheon arch, shouldered arch, shoulder girdle, skeen arch, skene arch, skew arch, squinch, straight arch, trimmer arch, tudor arch

., abutment, abutment arch, ahriman, arc, arc-boutant, arced, arched, arching, archway, arch over, arch support, arciform, arcuate, arcus zygomaticus, barrel vault, basket-handle arch, bayonne bridge, bell arch, bowed, broken arch, brow, camber arch, cheekbone, clawfoot, coign, coigne, corbel arch, cowboy boot, cowboy boots, curve, cusp, diminished arch, drop arch, english-gothic, english-gothic architecture, extrados, eyebrow, flatfoot, flat arch, flying buttress, fornix, four-centered arch, glenoid fossa, gothic arch, hammertoe, headstone, hoop, horseshoe arch, hump, hunch, hunch forward, hunch over, impost, innominate artery, instep, intrados, jugal bone, keel arch, key, keystone, lamina arcus vertebrae, lancet, lancet arch, lancet window, mala, malar bone, mandibular fossa, metatarsal arch, monumental, moorish, moorish arch, moorish architecture, new river gorge bridge, ogee arch, os zygomaticum, overarch, palladian, partial denture, pectoral arch, perpendicular, perpendicular style, pes cavus, pes planus, pier arch, pointed arch, proscenium arch, pseudocolus fusiformis, quoin, rampant arch, roman arch, round arch, rowlock arch, safety arch, scheme arch, scoinson arch, sconcheon arch, segmental arch, semicircular arch, shouldered arch, shoulder girdle, skeen arch, skene arch, skew arch, soffit, splayfoot, springer, squinch, steel arch bridge, stinky squid, straight arch, supercilium, sydney harbor bridge, three-centered arch, trefoil arch, trimmer arch, tudor arch, voussoir, whispering dome, whispering gallery, wicket, zygoma, zygomatic arch, zygomatic bone, zygomatic process

aqueduct, bridge, span

bend, construction, curved shape, entrance, entranceway, entree, entry, entryway, flex, skeletal structure, structure

boss, chief, condescending, head, important, of import, patronising, patronizing, skilled, superior, top