/okt͡siˈdenta saˈharo/

Western Sahara (a territory and former Spanish colony in North Africa; about 70% is occupied by Morocco, which claims ownership over the territory as its Southern Provinces, while 30% is governed by its native inhabitants as the Sahrawi Arab Democratic Republic)

/okt͡siˈdenta virɡiˈnio/

West Virginia (a state of the United States)

/okt͡sidenˈtalo/

Occidental, Interlingue

/oklaˈhomo/

Oklahoma (a state in the central United States, formerly a territory)

Oxford (a city in England)

/okˈtanto/

Octans (constellation)

alternative letter-case form of oktobro (“October”)

/ok/

eight (8)

/ˈoka/

eighth

/okanˈɡula/

octagonal

/okanˈɡulo/

octagon (polygon)

/okaˈpio/

okapi (Okapia johnstoni)

/okaˈrino/

ocarina

/okaˈzaʒo/

event, occasion, occurrence, opportunity

/oˈkaze/

/oˈkazi/

to happen, to occur

/okaˈziɡi/

to cause to happen, cause to take place

/okazinˈtaʒo/

event, happening

/oˈkazo/

/okazonˈtaʒo/

event, happening

/okazˈplena/

eventful

/okazpleˈnet͡so/

eventfulness

/ˈokt͡sent/

eight hundred

/okt͡siˈdenta/

west, western

/okt͡sidentaˈlisto/

Someone who knows and uses the constructed language Occidental (later renamed to Interlingue)

/okt͡sidenˈtano/

westerner

/okt͡siˈdente/

westerly

/okt͡siˈdenten/

westward

/okt͡siˈdento/

west (compass point)

/ˈokdek/

eighty

/ˈokdek du/

eighty-two

/ˈokdek kvar/

eighty-four

/ˈokdek kvin/

eighty-five

/ˈokdek nau̯/

eighty-nine

/ˈokdek ok/

eighty-eight

/ˈokdek sep/

eighty-seven

/ˈokdek ses/

eighty-six

/ˈokdek tri/

eighty-three

/ˈokdek ˈunu/

eighty-one

eighty-second

/okdek-kˈvara/

eighty-fourth

/okdek-kˈvina/

eighty-fifth

eighty-ninth

eighty-eighth

eighty-seventh

eighty-sixth

/okdek-tˈria/

eighty-third

eighty-first

/okˈdeka/

eightieth

/ˈokdek du/

alternative spelling of okdek du (“eighty-two”)

/ˈokdek kvar/

alternative spelling of okdek kvar (“eighty-four”)

/ˈokdek kvin/

alternative spelling of okdek kvin (“eighty-five”)

/ˈokdek nau̯/

alternative spelling of okdek naŭ (“eighty-nine”)

/ˈokdek ok/

alternative spelling of okdek ok (“eighty-eight”)

/ˈokdek sep/

alternative spelling of okdek sep (“eighty-seven”)

/ˈokdek ses/

alternative spelling of okdek ses (“eighty-six”)

/ˈokdek tri/

alternative spelling of okdek tri (“eighty-three”)

/ˈokdek ˈunu/

alternative spelling of okdek unu (“eighty-one”)

/ˈoke/

eighthly

/oˈkedro/

octahedron

/oˈkei̯/, /ˈokei̯/

okay, OK

/okiliˈardo/

sexdecillion (10⁵¹)

/okiliˈono/

quindecillion (10⁴⁸)

/oklaˈtera/

octagonal

/oklaˈtero/

octagon (8-sided polygon)

/ˈoko/

/oˈkobla/

octuple; multiplied by eight

/oˈkono/

an eighth (⅛)

/oˈkopo/

/oksiˈdiɡo/

oxidation

/okˈsido/

oxide

/oksiˈɡeni/

To combine with oxygen.

/oksiˈɡeno/

oxygen (colorless and odorless gas)

/oksiˈkoko/

cranberry

/oksiˈmoro/

oxymoron

/oksiˈtona/

oxytone

/ˈokso/

ox (castrated bull)

/okˈtano/

octane

/okˈtanto/

octant

/okˈtavo/

octave

/okˈtobro/

October (tenth month of the Gregorian calendar)

/oˈkula/

ocular (pertaining or relative to the eyes)

/okulˈfrapa/

conspicuous, visually striking, eye-popping

/okulˈɡlobo/

eyeball

/okulˈharo/

eyelash

/okuˈlisto/

oculist

H-system spelling of okulĵetas

H-system spelling of okulĵeti

H-system spelling of okulĵetis

H-system spelling of okulĵetos

H-system spelling of okulĵetu

H-system spelling of okulĵetus

X-system spelling of okulĵetas

X-system spelling of okulĵeti

X-system spelling of okulĵetis

X-system spelling of okulĵetos

X-system spelling of okulĵetu

X-system spelling of okulĵetus

/okulˈkovro/

blindfold

/oˈkulo/

/oˈkulta/

occult

/okuluˈmat͡ʃi/

to leer

/okuˈlumi/

to make eyes at

/okulˈvitro/

/okulˈʒeti/

/okulʃˈminko/

mascara

/oˈkuma/

octal

/oˈkupi/

to occupy

/okuˈpid͡ʒi/

to be occupied

/oˈkupo/

occupation

/okzalaˈt͡sido/

oxalic acid