ọ́n pron /ɔ̃̄/ mid-tone /ɔ̃́/ high-tone
Definitions
  1. him, her, it (third-person singular non-honorific object pronoun following a monosyllabic verb with a low- or mid-tone /ɔ̃/)
    Related words
    mopronpron pron èmipron ópron ọ́pron ẹ́pron ìwọpron ópron [pronoun dropped][preceding vowel repeated for mono­syllabic verbs] ẹ̀pron òunpron ápron wadet àwapron yíndet ẹ̀yinpron wọ́npron wọ́npron àwọnpron
Source: Wiktionary, where this word is spelled “ọn”. Reference: en-ọn-yo-pron-7s060eCI