English: O

o- /ˈoʊ/

OA

oaf /əʊf/

oak /oʊk/

oaken /ˈəʊk.ən/

oak tree /ˈəʊk ˌtɹiː/

oakum /ˈoʊk(ə)m/

oar /oɹ/

oar blade

oare

oars /ɔːz/

oarsman /ˈɔɹzmən/

oases /əʊˈeɪsiːz/

oasis /əʊˈeɪsɪs/

oat /oʊt/

oater /ˈoʊ.tɚ/

oath /ˈoʊθ/

oatmeal /ˈoʊtmil/

oats /oʊts/

ob /ɒb/

obbligato /ɒblɪˈɡɑːtəʊ/

obduracy /ˈɒb.dʊ.ɹə.si/

obdurate /-ət/

OBE

obedience /ə(ʊ)ˈbiːdɪəns/

obedient /oʊˈbidiənt/

obeisance /əˈbiː.səns/

obeisaunce

obelisk /ˈɒbəlɪsk/

obese /oʊˈbis/

obesity [-ɾi]

obesogenic /əʊbiːsəˈdʒɛnɪk/

obey /əˈbeɪ/

obeyed /oʊˈbeɪd/

obfuscate /ˈɑbfəskeɪt/

obfuscation /ˌɑb.fəˈskeɪ.ʃən/

obfuscatory

obi /ˈoʊbi/

obiter dictum /ˌoʊbɪɾɚ ˈdɪktəm/

obituary /oʊ-/

object /ˈɒb.d͡ʒɛkt/

objection /əbˈd͡ʒɛkʃən/

objectionable /əbdʒˈɛkʃənəbəl/

objective /ɒbˈd͡ʒɛk.tɪv/

objective case

objectively /əbˈd͡ʒɛktɪvli/

objectivity [ˌɑbd͡ʒɛkˈtɪvɪɾi]

objector /əbdʒˈɛktɝ/

object pronoun

objet /oʊbˈʒeɪ/

objet d'art /ˌɒbʒeɪ ˈdɑː(ɹ)/

objets /oʊbˈʒeɪz/

objet trouvé

objurgation

oblast /ˈɒblæst/

oblate /ˈɒbleɪt/

oblation /əʊˈbleɪʃən/

obligate /ˈɒb.lɪˌɡeɪt/

obligation /ˌɑ.bləˈɡeɪ.ʃn̩/

obligations /ɑb.ləˈɡeɪ.ʃənz/

obligato

obligatory /əˈblɪɡətɔɹi/

oblige /əˈblaɪd͡ʒ/

obliged /əˈblaɪd͡ʒd/

obliging /əˈblaɪd͡ʒɪŋ/

oblique /əˈbliːk/

oblique arch

oblique bridge

oblique case

oblique circle

oblique fire

oblique flank

oblique line

obliquely /əˈbliːkli/

oblique motion

oblique muscle

oblique narration

oblique plane

oblique sailing

oblique speech

oblique sphere

oblique step

oblique system of coordinates

obliquus

obliterate [-ɾə-]

obliteration /əblɪtɝˈeɪʃən/

oblivion /əˈblɪviːən/

oblivious /əˈblɪviːəs/

oblong /ˈɑblɑŋ/

obloquy /ˈɒbləˌkwi/

obnoxious /əbˈnɑkʃəs/

oboe /ˈoʊboʊ/

oboist /ˈoʊboʊəst/

OBP

obround

obscene /əbˈsin/

obscenity /əbsˈɛnɪti/

obscure /əbˈskjɝ/

obscurity /əbˈskjɝɪti/

obsequious /əbˈsiːkwi.əs/