archives, n. 1. records, annals, chronicles, historical documents or papers, memorabilia, memoranda, memorials; rolls, registers, statistics, lists, entries, ledgers; documents, public papers, government papers, Law. muniments.
2. registry, register office, chancery, Brit, muniment room; library, stack room, stacks, files; store, bank, museum.
archway, n. entrance, threshold, entree, entry, entryway, ingress, approach; opening, door, doorway, hatch, gate, gateway, postern, portal; passage, passageway, walkway, gangway, arcade, corridor, gallery.
arctic, adj. polar, boreal, northern, septentrional; frigid, bleak, very cold, raw, hyperborean; icy, glacial, gelid, frozen, freezing, ice-cold; frosty, chilly, algid, wintry, brumal, hibernal, snowy, niveous; snowbound, icebound.
ardent, adj. 1. passionate, impassioned, fervent, fervid, perfervid; zealous, eager, enthusiastic, spirited, high-spirited; emotional, emotive, excitable; volatile, fiery, hot-headed; heated, feverish, white-hot, inflamed, volcanic; overwrought, upset, hysterical, not rational; temperamental, high-strung, nervous, tense, touchy, testy, peppery.
2. lusting after, burning, SI. hot for; infatuated, mad about, Inf. wild about; stimulated, excited, aroused; Inf hot, Inf. turned on.
3. vehement, fierce, angry, rancorous, wrathful; burning, flaming, blazing, fiery; red-hot, flaring, flashing; malevolent, cruel, malicious, spiteful; waspish, hostile, inimical, severe, harsh; intense, intensified, strong, concentrated, consuming; deep, dark, profound, rich, vivid, brilliant.
ardor, n. 1. fervor, fervency, warmth, glow, fire; devotion, devotedness, zeal, feverishness, passion, fanaticism.
2. enthusiasm, eagerness, earnestness, keenness, intentness, intensity, excitement; vigor, force, energy, determination, vehemence; relish, gusto, delight, elation, rapture, ecstasy, transport.
3. spirit, abandon, liveliness, vivacity; emotion, feeling, animation, exuberance, ebullience; vitality, life, buoyancy, bounce, zest, verve, zing, SI. oomph.
4. heartiness, cordiality, affection, fondness, good will; desire, concupiscence, lust, libidinousness; sensuality, carnality, lechery, salacity, salaciousness; lasciviousness, licentiousness, wantonness.
arduous, adj. 1. laborious, difficult, hard; onerous, burdensome, heavy, operose; exhausting, wearisome, tiresome, fatiguing; irksome, troublesome, trying.
2. energetic, vigorous, robust; forceful, forcible, emphatic, strenuous; herculean, mighty, powerful, strong, hefty; pushing, determined, earnest, assiduous.
3. steep, acclivous, acclivitous, uphill; sheer, bold, abrupt, precipitous, bluff, Archaic, headlong; upright, perpendicular, vertical, plumb.
4. severe, harsh, grim, bitter, tough; rigorous, cruel, fierce, ferocious; terrible, formidable, awful, extreme.
area, n. 1. region, district, zone, quarter; locality, section, U.S. block; territory, realm, domain, province; department, precinct, arrondissement, canton, bailiwick; tract, stretch, terrain, field; expanse, sweep, reach, surface; compass, perimeter, range, extent, margin, scope, circuit; arena, ring, sphere, circle, orbit.
2. enclosure, close, Fort, parade, yard, court, backyard; plot, lot, plat, site, spot; patch, parcel, portion, part; clearing, square, plaza, It. piazza; esplanade,