О — оа об ов ог од ож оз ой ок ол ом он оп ор ос от оф ох оц оч ош ощ
орава — horde, mob, swarm, rabble;
оракул — oracle, prophet, seer, soothsayer, diviner;
оранжевый — orange, orangey, tangerine, apricot, peach, coral, saffron, amber;
оранжерея — greenhouse, conservatory, orangery, glasshouse, hothouse;
оратор — orator, speaker, public speaker, rhetorician, speechmaker, rhetor;
орать — shout, yell, scream, cry, bawl, roar, howl, bellow, cry blue murder;
орбита — orbit, path, trajectory, sphere of influence, circuit;
орбитальный — orbital, orbiting;
оргазм — orgasm, climax, big o, coming, cumming, sexual climax;
орган — organ, body, agency, instrument, authority, institution;
организатор — organizer, promoter, arranger, mastermind, convener, host, initiator, instigator, founder, sponsor;
организационный — organizational, organisational, administrative, structural, managerial, preparatory;
организация — organization, organisation, institution, establishment, company, firm, agency, association, body, entity;
организм — organism, body, system, living being, creature, constitution;
организованно — in an organized manner, in an orderly fashion, in an organized way, systematically, methodically, concertedly, cohesively, orderly;
организованный — organized / organised, well-organized, structured, methodical, systematic, orderly, arranged, coordinated, set up, established;
организовать — organize, arrange, set up, establish, found, institute, stage, mount, coordinate, hold;
организоваться — get organized, pull oneself together, come together, form, rally, self-organize, establish;
организовывать — organize, arrange, set up, establish, stage, mount, coordinate, orchestrate, form, mastermind;
органист — organist, organ-player;
органически — organically, inherently, naturally, intrinsically;
органический — organic, integral, inherent, innate, intrinsic, ingrained;
органично — organically, naturally, seamlessly, cohesively, harmoniously, effortlessly, organic;
органичный — organic, natural, inherent, innate, intrinsic, seamless, harmonious, integral;
оргкомитет — organizing committee, organising committee, planning committee, host committee, preparatory committee;
орда — horde, mob, throng, swarm, pack, crowd;
орден — order, decoration, award, insignia, badge;
орденоносец — decorated person, holder of an order, recipient of an order, awardee, order bearer;
ордер — warrant, order, money order, voucher;
ординарец — batman, orderly, striker;
орел — eagle, aerie, eyrie, Aquila;
оренбургский — Orenburg;
ореол — halo, aureole, nimbus, corona, aura, halation, glory, aureola, gloriole;
орех — nut, walnut, hazelnut, nutwood;
ореховый — nut, nutty, walnut, hazel;
орешек — small nut, little nut, nutlet, pine nut, nut to crack;
орешник — hazel, hazelnut tree, hazel bush, filbert, cobnut;
оригинал — original, master copy, source, hard copy, eccentric, character, oddball;
оригинальность — originality, uniqueness, novelty, freshness, inventiveness, creativity, individuality, distinctiveness;
оригинальный — original, genuine, authentic, unique, distinctive, unconventional, novel, creative, innovative, peculiar;
ориентация — orientation, direction, focus, alignment, sense of direction, attitude, mindset, briefing, guidance, bearings;
ориентир — landmark, reference point, benchmark, guideline, beacon, goal, target;
ориентированный — oriented, focused, centered, directed, targeted, geared, aimed;
ориентировать — orient, orientate, direct, guide, focus, aim, brief, gear towards;
ориентироваться — orient / orientate, navigate, find one's bearings / get one's bearings, be familiar with / have a good grasp of, be guided by, focus on, be aimed at;
ориентировка — orientation, briefing, directive, guideline, instruction, all-points bulletin, lookout, bearing, orienteering;
орк — orc, ork;
оркестр — orchestra, band, symphony, philharmonic, ensemble;
оркестровый — orchestral, symphonic;
орлиный — aquiline, eagle, eagle's, eagle-like;
орловский — Oryol, Orlovsky, Orlov;
орнамент — ornament, pattern, design, adornment, motif, embellishment, tracery, filigree;
ортодоксальный — orthodox, conventional, traditional, mainstream, doctrinaire, hidebound;
орудие — gun, cannon, piece, implement, tool, instrument, weapon, ordnance;
орудийный — gun, artillery, cannon;
орудовать — wield, operate, handle, brandish, use, manipulate, manage;
оружейный — arms, weapon, weapons, gun, armament, weapons-grade;
оруженосец — squire, armiger, esquire, armor-bearer, armour-bearer, weapon-bearer, shield-bearer, sword-bearer;
оружие — weapon, arms, weaponry, armament, ordnance, firearm, gun;
