О — оа об ов ог од ож оз ой ок ол ом он оп ор ос от оф ох оц оч ош ощ
он — he, it;
она — she, it;
онанизм — onanism, masturbation, self-pleasure, self-gratification, self-abuse, wank, solitary sex, automanipulation;
онеметь — become numb, go numb, be numb, lose sensation, lose feeling, be struck dumb, be speechless, go rigid, grow stiff, be petrified;
они — they;
оно — it, that, this, one;
онтологический — ontological, ontologic;
онтология — ontology;
оный — said, aforementioned, aforesaid, above-mentioned, that, the former;