obey [əˈbei]
object [ˈobdʒikt əbˈdʒekt]
object [ˈobdʒikt əbˈdʒekt]
objection [əbˈdʒekʃən]
objective [obˈdʒektiv]
oblige [əˈblaidʒ]
observation [obzə:ˈveiʃən]
observe [əbˈzə:v]
observer [əbˈzə:və]
obstacle [ˈobstəkl]
obtain [əbˈtein]
obvious [ˈobviəs]
occasion [əˈkeiʒən]
occasional [əˈkeiʒənəl]
occupation [ɔkjuˈpeiʃənl]
occupy [ˈɔkjupəai]
occur [əˈkə:]
occurrence [əˈkʌrəns]
ocean [ˈəuʃən]
o’clock [əˈklɔk]
October [ɔkˈtəubə]
odd [od]
of [ɔv, əv]
off [ɔ:f]
offend [əˈfend]
offer [ˈɔfə]
office [ˈɔfis]
officer [ˈɔfisə]
official [əˈfiʃəl]
often [ˈɔ:fn]
oh [əu]
oil [ɔil]
okay [ˈəuˈkei]
old [əuld]
omit [əuˈmit]
on [on]
once [wʌns]
one [wʌn]
oneself [wʌnˈself]
onion [ˈʌnjən]
only [ˈəunli]
onto [ˈontu]
open [ˈəupən]
opening [ˈəupəniŋ]
opera [ˈɔpərə]
operate [ˈɔpəreit]
operation [ɔpəˈreiʃən]
operational [ɔpəˈreiʃənl]
operator [ˈɔpəreitə]
opinion [əˈpinjən]
opponent [əˈpəunənt]
opportunity [pəˈtju:niti]
oppose [əˈpəuz]
opposite [ˈɔpəzit]
optical [ˈɔptikəl]
optimistic [ɔptimistik]
optional [ˈɔpʃənl]
or [ɔ:, ə]
oral [ˈɔ:rəl]
orange [ˈorindʒ]
orbit [ˈɔ:bit]
orchestra [ˈɔ:kistrə]
order [ˈɔ:də]
orderly [ˈɔ:dəli]
ordinary [ˈɔ:dinəri]
ore [ɔ:]
organ [ˈɔ:gən]
organic [ɔ:ˈgænik]
organism [ˈɔ:gənizəm]
organization [ɔ:gənaiˈzeiʃən]
organize [ˈɔ:gənaiz]
origin [ˈoridʒin]
original [əˈridʒənəl]
other [ˈʌðə]
otherwise [ˈʌðəwaiz]
ought [ɔ:t]
ounce [auns]
our [ˈauə]
ours [ˈauəz]
ourselves [auəˈselvz]
out [aut]
outcome [ˈautkəm]
outdoors [ˈautˈdɔ:z]
outer [ˈautə]
outlet [ˈaut-let]
outline [ˈaut-lain]
outlook [ˈaut-luk]
output [ˈautput]
outset [ˈaut-set]
outside [ˈautˈsaid]
outstanding [autˈstændiŋ]
outward [ˈautwəd]
oven [ˈʌvn]
over [ˈəuvə]
overall [ˈəuvərɔ:l]
overcoat [ˈəuvəkəut]
overcome [əuvəˈkʌm]
overhead [ˈəuvəˈhed, ˈəuvəhed]
overlook [əuvəˈluk]
overnight [ˈəuvənait]
overseas [ˈəuveˈsi:z]
overtake [əuvəˈteik]
owe [əu]
owl [aul]
own [əun]
owner [ˈəunə]
ownership [ˈəunəʃip]
ox [ɔks]
oxygen [ˈɔksidʒən]