arbor, n. 1. bower, grotto, alcove, recess, leafy shelter; trellis, lattice, pergola, pavilion, gazebo, (in Turkey and Iran) kiosk; pleasure-garden, promenade, pleasance.
2. retreat, refuge, haven, shelter, hermitage; asylum, resort, sanctuary, ark, covert, hideaway, mew.
arboreal, adj. treelike, arborescent, arboreous, dendroid, dendritic, dendriform, tree-shaped; branched, branchlike, ramose, ramous, ramiform.
arc, n. curve, bow, arch, bend, curved line, Geom. parabola, curvature, flexure, Archit. foil, arcuation; crescent, half-moon, lunula, meniscus,
arcade, n. 1. gallery, roofed-in gallery, cloister, loggia, Brit, piazza, colonnade, peristyle, portico, porch. 2. passageway, covered passageway; market, shops, stalls, shopping mall or plaza,
arcane, adj. mysterious, enigmatic, enigmatical, inscrutable, unfathomable, incomprehensible, impenetrable; dark, deep, profound, abstruse, esoteric, recondite; obscure, secret, hidden, concealed, covert, veiled, masked, screened, cloaked; occult, cabalistic, cryptic, oracular, mystic, sphinxlike.
arcanum, n. 1. Often
arcana secret, mystery, cabala; enigma, conundrum.
2. secret remedy, alembic, elixir, magic potion; magic wand, panacea, nostrum,
arch', n. 1. archway, arched doorway, arched gateway; span, vault, dome, cupola, cove, coved vault, cloistered vault; bow, bend, curve, arc, convexity, camber, curvature, horseshoe; camber piece, camber slip, Anat. fornix, Math, catenary, Geom. cycloid.
-v. 2. arch over, vault, span, bridge; bow, bend, curve, camber.
arch2, adj. 1. chief, foremost, most important, principal, first; greatest, highest, consummate, extreme; first-class, first-rate, Inf. number one, top.
2. cunning, shrewd, adroit, sly, tricky, artful, designing, intriguing; waggish, roguish, saucy, mischievous; frolicsome, playful, prankish, tricksy, tricksome.
archaic, adj. antiquated, superannuated, antique, ancient, old, old as the hills; antediluvian, fossilized, prehistoric, primitive; obsolete, obsolescent, extinct; bygone, passe, out of date, old-fashioned, out of fashion, unfashionable, behind the times,
archaism, n. anachronism, throwback, atavism, relic, asynchronism; obsolete diction, archaic style, antiquated term.
arched, adj. vaulted, cambered, embowed, concave, forniciform, Biol, fornicate, Heraldry, enarched.
archer, n. bowman, longbowman, crossbowman, arbalester, toxophilite; Robin Hood, sagittary, Astron. Sagittarius.
archetype, n. 1. prototype, original, protoplast, first form; ancestor, forerunner, precursor, predecessor.
2. pattern, paradigm, form, mold, model; standard, example, exemplar, paragon, ideal,
architect, n. 1. designer, planner, city planner, building consultant, landscaper; draftsman, blueprint-er, sketcher, artist; builder, constructor, maker, fashioner.
2. creator, author, inventor, former, originator; deviser, contriver, schemer, prime mover.
-v. 3. design, plan, devise, contrive, scheme; create, invent, author, form, originate; blueprint, draft, sketch, draw up; construct, build, make, frame, fashion.
architecture, n. 1. design, planning, architectonics; building, construction, making, framing, fashioning; drafting, blueprinting, sketching.