Letter: a
- ardour, Eros, Platonic love, abandon, acquiescence, activity, admiration, adoration, affection, agape, agreeableness, alacrity, allegiance, amenability, anger, animation

- arduous, Herculean, abrupt, abstruse, backbreaking, brutal, burdensome, complex, critical, crushing, delicate, demanding, difficult, energetic, exacting, exhausting

- arduously, hammer and tongs, hard, hardly, heart and soul, industriously, laboriously, manfully, mightily, onerous, painfully, strenuously, tooth and nail

- arduousness, complexity, complication, difficulty, hairiness, hard job, hard labour, hardness, intricacy, rigour, toughness

- area, abode, academic discipline, academic speciality, acreage, airspace, amplitude, applied science, arena, art, bag, bailiwick, bearings, beat, belt, bench mark

- areal, geographic, geographical, regional, sectional, topographic

- arena theatre, amphitheatre, auditorium, cabaret, club, concert hall, hall, house, music hall, night spot, nightclub, opera, opera house, playhouse, showboat, theatre

- arena, academic discipline, academic speciality, ambit, amphitheatre, applied science, area, art, assembly hall, auditorium, back, backdrop, background, bailiwick, beat, border

- arenaceous, grainy, granular, granulated, gravelly, gritty, pebbly, sandy, shingled

- areola, annular muscle, annulus, aureole, chaplet, circle, circuit, circumference, circus, closed circle, corona, coronet, crown, cycle, diadem, discus

- Ares, Aphrodite, Apollo, Athena, Bacchus, Ceres, Cupid, Cybele, Demeter, Diana, Dionysus, Eros, Ge, Great Mother, Hades, Helios

- argent, achievement, armoury, arms, azure, bandeau, bar, bar sinister, baton, bearings, bend, billet, blazon, canton, chalky, charge

- argon, ammonia, carbon dioxide, gas, nitrogen, oxygen, silver

- argosy, RN, armada, bark, boat, bottom, bottoms, bucket, coast guard, craft, division, escadrille, fleet, flotilla, hooker, hulk

- argot, Babel, Greek, babble, cant, cipher, code, cryptogram, double Dutch, garble, gibberish, gift of tongues, glossolalia, gobbledygook, jargon, jumble

- arguable, at issue, conjectural, contestable, controversial, controvertible, debatable, deniable, disputable, doubtable, doubtful, dubious, iffy, in dispute, in doubt, in question

- argue down, answer, confound, confute, contradict, controvert, crush, defeat, demolish, deny, dismiss, dispose of, finish, floor, nonplus, overthrow

- argue for, advocate, answer, assert, champion, contend for, counter, defend, espouse, maintain, rebut, refute, reply, respond, riposte, speak for

- argue insincerely, distort, misapply, pervert, rationalize

- argue into, bring round, captivate, charm, con, convince, draw, gain, hook, persuade, prevail, prevail upon, procure, prompt, sell, sway

- argue, affirm, agitate, allege, altercate, analyse, announce, annunciate, approve, assert, asseverate, attest, aver, avouch, avow, bandy words

- arguer, Philadelphia lawyer, apologist, debater, disputant, polemic, wrangler

- argument by analogy, claptrap, fallacy, moonshine, solecism, sophism, sophistry, weak point

- argument, action, addend, affray, altercation, angle, answer, antilogarithm, apologetics, apologia, apology, architectonics, architecture, argumentation, assertion, atmosphere

- argumentation, antagonism, apologetics, apologia, apology, argument, bickering, casuistry, conflict, contention, contradiction, controversy, debate, defence, difference, discord

- argumentative, belligerent, cat-and-dog, combative, contentious, controversial, dialectic, disagreeable, disputatious, ill-humoured, litigious, polemic, polemical, pro and con, quarrelsome, scrappy

- aria cantabile, aria, bravura, cantabile, coloratura, solo

- aria singer, alto, baritone, bass, basso, canary, cantor, coloratura soprano, contralto, crooner, diva, opera singer, prima donna, singer, songbird, songster

- aria, air, aria cantabile, bravura, cantabile, canto, coloratura, descant, ditty, hymn, lay, lied, line, measure, melodic line, melody

- arid, academic, anhydrous, athirst, barren, blah, blank, bloodless, bone-dry, bookish, boring, bromidic, celibate, characterless, childless, cold
