Arching, a. Vaulted, curving.

Architect, n. 1. Designer of buildings, professor of building.

2. Contriver, maker, former, author.

Architecture, n. 1. Science or art of building.

2. Workmanship, framework, frame, structure, fabric.

Archives, n. pl. 1. Registry, record-office.

2. Records, chronicles, registers, annals, historical accounts.

Archway, n. Arched passage.

Arctic, a. Northern, boreal.

Arcuate, a. [Rare.] Curved, bent, bowed, hooked, crooked, aduncous.

Arcuation, n. [Rare.] Curvature, incurvation, curvity, flexure, bend, crook.

Ardent, a. 1. Hot, burning, fiery.

2. Warm, passionate, fervent, impassioned, eager, intense, keen, sharp, vehement, fiery, earnest, fervid, glowing, zealous, devoted, enthusiastic, strenuous, sanguine.

3. Alcoholic, spirituous.

Ardor, n. 1. Heat, warmth.

2. Zeal, fervor, fervency, flame, glow, excitement, sharpness, earnestness, eagerness, heartiness, devotion, enthusiasm, soul, spirit, vehemence, impetuosity, intensity, passion.

Arduous, a. 1. Steep, high, lofty, uphill.

2. Hard, difficult, laborious, onerous, troublesome, Herculean, toilsome, tiresome, wearisome, fatiguing, beset with difficulties, full of difficulties.

Area, n. 1. Region, sphere, realm, territory, domain, district, circuit, circle, definite space.

2. (Geom.) Superficial contents.

Arena, n. Field, lists, stage, ring, amphitheatre, battle-field, field of battle, scene of action, place of contest.

Arenaceous, a. Sandy, arenose.

Arenose, a. Sandy, arenaceous.

Areometer, n. Hydrometer.

Argent, a. 1. Of silver.

2. Silvery, bright, resplendent, shining, radiant, brilliant, beaming, effulgent, refulgent.

Argil, n. 1. Potter's clay, white clay.

2. Alumina, argillaceous earth, oxide of aluminium.

Argillaceous, a. Clayey, aluminous.

Argol, n. Tartar (crude), bitartrate of potash, wine-stone.

Argosy, n. Carack, galleon.

Argue, v. n. 1. Reason, plead, offer reasons, use arguments.

2. Dispute, debate, chop logic, try conclusions, bandy words or arguments, hold or carry on an argument.

Argue, v. a. 1. Show, indicate, evince, denote, imply, betoken, prove.

2. Debate, discuss, ventilate, sift, contest, controvert, moot, reason upon.

Arguer, n. Reasoner, debater, controversialist, disputant, disputer.

Argument, n. 1. Reason, reasoning, chain of reasoning, process of reasoning.

2. Controversy, dispute, disputation, discussion.

3. Subject, topic, matter, theme, thesis, question, subject-matter, matter in hand.

Argumentation, n. Reasoning, ratiocination, process of reasoning.

Argumentative, a. 1. Controversial, polemical.

2. Disputatious, given to controversy.

Argus-eyed, a. Discerning, perspicacious, sharp-sighted, quick-sighted, lynx-eyed, hawk-eyed.

Arid, a. Dry, dried up, parched with heat.

Aridity, n. Dryness, siccity, want of moisture.

Aright, ad. Rightly, without error or mistake.

Ariose, a. Melodious, of a melodious character, characterized by melody (as distinguished from harmony).

Arise, v. n. 1. Ascend, mount, soar, tower, go up.

2. Get up, start up, get out of bed.

3. Rise, appear, come in sight, come into view, present itself, show itself, discover itself, make its appearance, reveal itself, come to light.

4. Begin, originate, spring, spring up, be excited, come into action.

5. Come into being, enter upon life.

6. Accrue, result, proceed, issue, flow, follow, come, ensue, be derived.

Aristate, a. (Bot.) Awned, bearded.

Aristocracy, n. 1. Government of nobles or a privileged order.

2. Nobility, noblesse, gentry, peerage, body of nobles, the quality, persons of rank.

3. [Colloquial.] Upper classes, upper-ten, upper-crust, upper ten thousand.

Aristocratic, a. 1. Noble, princely, patrician, titled, of high rank.

2. Haughty, proud, arrogant, disdainful, overweening, supercilious, overbearing, consequential.

Aristocratical, a. 1. Noble, princely, patrician, titled, of high rank.

2. Haughty, proud, arrogant, disdainful, overweening, supercilious, overbearing, consequential.