Letter: a
- abut on, abut, adjoin, bear upon, bestride, border, butt, connect, join, lean on, lie on, neighbour, perch, recline, rely on, rest on
- abut, abut on, adjoin, be based on, be contiguous, be in contact, bear on, bestride, border, border on, bring near, butt, communicate, conjoin, connect, join
- abutment, bank, beam, breakwater, bulwark, buttress, conjugation, conjunction, connection, contiguity, embankment, groin, jetty, joint, junction, juxtaposition
- abutter, bystander, neighbour, onlooker, tangent
- abutting, adjacent, adjoining, contiguous, near, neighbouring, surrounding, touching
- abysmal, Cyclopean, Gargantuan, Herculean, Homeric, abyssal, appalling, astronomic, awful, bottomless, cavernous, colossal, deep as hell, dreadful, elephantine, enormous
- abyss, abyssal zone, arroyo, bottom waters, bottomless depths, box canyon, breach, break, canyon, cavity, chap, chasm, check, chimney, chink, cleft
- abyssal rock, basalt, bedrock, conglomerate, crag, gneiss, granite, lava, monolith, rubble, sandstone, schist, scree, stone
- abyssal zone, abyss, deep, ground, ocean depths, trench
- abyssal, abysmal, bottomless, cavernous, deep, gaping, marine, plunging, soundless, unfathomable, unfathomed, yawning
- AC, DC, absorption current, active current, alternating current, conduction current, convection current, cycle, delta current, dielectric displacement current, direct current, displacement current, eddy current, electric current, electric stream, emission current
- acacia, ebony, flower, oak, resin, tree, wood
- academe, academia, college, graduate school, instructor, junior college, normal, normal school, university, varsity
- academia, academe, college, college of engineering, community college, degree-granting institution, four-year college, graduate school, institute of technology, ivied halls, journalism school, junior college, law school, medical school, multiversity, normal
- academic dean, administration, administrator, chancellor, dean, master, president, principal, provost, rector
- academic discipline, area, arena, art, concern, discipline, domain, field, natural science, province, science, social science, speciality, sphere, study, technology
- academic speciality, area, arena, art, concern, course, curriculum, discipline, domain, elective, field, humanities, liberal arts, major, minor, natural science
- academic year, annum, century, day, decade, fortnight, hour, leap year, lustre, millennium, minute, moment, month, moon, quarter, second
- academic, abstract, armchair, book-learned, bookish, chimerical, classroom, closet, collegiate, conjectural, cross-disciplinary, devoted to studies, diligent, donnish, erudite, extramural
- academician, classicist, clerk, colossus of knowledge, genius, giant of learning, humanist, learned clerk, learned man, literary man, lover of learning, man of learning, man of letters, mastermind, mine of information, philologist
- academy, educational institution, grammar school, high, high school, institute, intermediate school, junior high, junior high school, middle school, prep school, preparatory school, public school, school, secondary school, seminary
- accede to, OK, accede, accept, accord, agree, agree to, approve, assent, condescend, connive at, consent, defer, deign, endorse, get
- accede, OK, abide by, accede to, accept, acclaim, accord to, acquiesce, acquiesce in, agree, agree to, agree with, allow, applaud, approve, approve of
- accelerate, activate, aggravate, atomize, beef up, blow up, bombard, bundle, bustle, cleave, complicate, concentrate, condense, consolidate, crack on, cross-bombard
- accelerated, aggrandized, amplified, bloated, elevated, enhanced, enlarged, expanded, extended, fast, heightened, increased, inflated, intensified, magnified, multiplied
- acceleration, aggravation, beefing-up, blow-up, blowing up, concentration, condensation, consolidation, deepening, double time, double-quick, double-quick time, drive, enhancement, exacerbation, exaggeration
- accelerator, alternator, ammeter, bearings, bonnet, boot, brake, bucket seat, bumper, camshaft, carburettor, chassis, choke, clutch, connecting rod, convertible top
- accelerometer, anemometer, direction finder, instrument, log
- accent mark, accent, bar, cancel, character, dot, hold, key signature, lead, ligature, mark, measure, notation, pause, sign, signature
- accent, accent mark, accents, accentuate, accentuation, anapaest, articulation, bar, beat, belabour, broad accent, brogue, burr, cadence, caesura, cancel
