Countries Starting with 'O'

Our team has curated exactly 310 verified Countries starting with 'O', including Oasts, Oakleaves, Oatcake, Objectivise and Obliges. Perfect for writers, educators, and students, this directory helps uncover expressive new vocabulary, improve spelling accuracy, and find the right words for daily writing or official word games.

Mapping the geopolitical globe, studying these countries is an essential resource for geography trivia and travel planning.

Sort:

Group:

Case:

View:

JUMP TO:

Starts with OA3 words

oasts

5 Letters

Noun definition for oasts (1)

oakleaves

9 Letters

Noun definition for oakleaves (1)

oatcake

7 Letters

Noun definition for oatcake (1)

Starts with OB6 words

objectivise

11 Letters

Noun definition for objectivise (1)

obliges

7 Letters

Noun definition for obliges (1)

obesogenic

10 Letters

Noun definition for obesogenic (2)

oblations

9 Letters

Noun definition for oblations (2)

obsidianite

11 Letters

Noun definition for obsidianite (3)

obtains

7 Letters

Noun definition for obtains (2)

Starts with OC12 words

octofid

7 Letters

Noun definition for octofid (1)

octohedron

10 Letters

Noun definition for octohedron (3)

occlusogingival

15 Letters

Noun definition for occlusogingival (2)

occasioned

10 Letters

Noun definition for occasioned (2)

ochronosus

10 Letters

Noun definition for ochronosus (3)

octroi

6 Letters

Noun definition for octroi (1)

ocreated

8 Letters

Noun definition for ocreated (1)

octastyle

9 Letters

Noun definition for octastyle (1)

octenary

8 Letters

Noun definition for octenary (2)

ocheriest

9 Letters

Noun definition for ocheriest (2)

occidentalised

14 Letters

Noun definition for occidentalised (1)

oculospinal

11 Letters

Noun definition for oculospinal (1)

Starts with OD4 words

odinism

7 Letters

Noun definition for odinism (2)

odorate

7 Letters

Noun definition for odorate (2)

odorously

9 Letters

Noun definition for odorously (1)

odontostomous

13 Letters

Noun definition for odontostomous (2)

Starts with OE1 words

oecologically

13 Letters

Noun definition for oecologically (1)

Starts with OF6 words

offcolour

9 Letters

Noun definition for offcolour (3)

offcuts

7 Letters

Noun definition for offcuts (1)

offload

7 Letters

Noun definition for offload (1)

offerers

8 Letters

Noun definition for offerers (2)

offloads

8 Letters

Noun definition for offloads (1)

offuscation

11 Letters

Noun definition for offuscation (1)

Starts with OG3 words

ogre

4 Letters

Noun definition for ogre (2)

2 Letters

Noun definition for og (1)

ogives

6 Letters

Noun definition for ogives (1)

Starts with OI2 words

oilily

6 Letters

Noun definition for oilily (1)

oiligarchy

10 Letters

Noun definition for oiligarchy (2)

Starts with OK1 words

oktas

5 Letters

Noun definition for oktas (3)

Starts with OL7 words

oleomargarins

13 Letters

Noun definition for oleomargarins (2)

ollavs

6 Letters

Noun definition for ollavs (1)

olivaster

9 Letters

Noun definition for olivaster (3)

olives

6 Letters

Noun definition for olives (2)

oleacinidae

11 Letters

Noun definition for oleacinidae (1)

oligogenes

10 Letters

Noun definition for oligogenes (1)

oligocarpous

12 Letters

Noun definition for oligocarpous (1)

Starts with OM9 words

ombus

5 Letters

Noun definition for ombus (2)

omnisexuality

13 Letters

Noun definition for omnisexuality (1)

omnipotent

10 Letters

Noun definition for omnipotent (3)

omentorrhaphy

13 Letters

Noun definition for omentorrhaphy (1)

omniform

8 Letters

Noun definition for omniform (1)

omniactuality

13 Letters

Noun definition for omniactuality (1)

omphalectomy

12 Letters

Noun definition for omphalectomy (1)

omakases

8 Letters

Noun definition for omakases (2)

omophagia

9 Letters

Noun definition for omophagia (3)

Starts with ON8 words

onym

4 Letters

Noun definition for onym (3)

ontologies

10 Letters

Noun definition for ontologies (2)

oneiroscopies

13 Letters

Noun definition for oneiroscopies (1)

oncogenic

9 Letters

Noun definition for oncogenic (3)

2 Letters

Noun definition for on (2)

onerous

7 Letters

Noun definition for onerous (1)

onwards

7 Letters

Noun definition for onwards (2)

onie

4 Letters

Noun definition for onie (3)

Starts with OO3 words

oomiac

6 Letters

Noun definition for oomiac (1)

ootid

5 Letters

Noun definition for ootid (3)

oophoreocele

12 Letters

Noun definition for oophoreocele (1)

Starts with OP12 words

opulences

9 Letters

Noun definition for opulences (3)

opisthodomoses

14 Letters

Noun definition for opisthodomoses (2)

ophthalmophobia

15 Letters

Noun definition for ophthalmophobia (1)

optimization

12 Letters

Noun definition for optimization (2)

opercle

7 Letters

Noun definition for opercle (2)

ophthalmotonometry

18 Letters

Noun definition for ophthalmotonometry (1)

operosities

11 Letters

Noun definition for operosities (1)

oppilating

10 Letters

Noun definition for oppilating (1)

opprobrium

10 Letters

Noun definition for opprobrium (1)

opusculum

9 Letters

Noun definition for opusculum (2)

operantis

9 Letters

Noun definition for operantis (1)

opsonize

8 Letters

Noun definition for opsonize (1)

Starts with OR12 words

ordos

5 Letters

Noun definition for ordos (1)

oriform

7 Letters

Noun definition for oriform (2)

ornithogeographic

17 Letters

Noun definition for ornithogeographic (2)

orectolobidae

13 Letters

Noun definition for orectolobidae (2)

origanum

8 Letters

Noun definition for origanum (2)

orillion

8 Letters

Noun definition for orillion (1)

ortyx

5 Letters

Noun definition for ortyx (2)

ornithoscopies

14 Letters

Noun definition for ornithoscopies (2)

orgone

6 Letters

Noun definition for orgone (1)

orthograde

10 Letters

Noun definition for orthograde (3)

organometallics

15 Letters

Noun definition for organometallics (2)

orate

5 Letters

Noun definition for orate (1)

Starts with OS11 words

oscinidae

9 Letters

Noun definition for oscinidae (1)

osteocomma

10 Letters

Noun definition for osteocomma (2)

osnappar

8 Letters

Noun definition for osnappar (3)

ossicle

7 Letters

Noun definition for ossicle (2)

osteotomes

10 Letters

Noun definition for osteotomes (2)

osmanthus

9 Letters

Noun definition for osmanthus (2)

osmoles

7 Letters

Noun definition for osmoles (1)

oshac

5 Letters

Noun definition for oshac (2)

oscheoplasty

12 Letters

Noun definition for oscheoplasty (2)

ostracised

10 Letters

Noun definition for ostracised (1)

osteolysis

10 Letters

Noun definition for osteolysis (2)

Starts with OT5 words

ottavarima

10 Letters

Noun definition for ottavarima (1)

otherwards

10 Letters

Noun definition for otherwards (3)

otiorhynchidae

14 Letters

Noun definition for otiorhynchidae (1)

otopyorrhea

11 Letters

Noun definition for otopyorrhea (1)

ottomanlike

11 Letters

Noun definition for ottomanlike (1)

Starts with OU12 words

outintrigued

12 Letters

Noun definition for outintrigued (1)

outmarching

11 Letters

Noun definition for outmarching (2)

outdodge

8 Letters

Noun definition for outdodge (1)

outfire

7 Letters

Noun definition for outfire (1)

outbulks

8 Letters

Noun definition for outbulks (2)

outgive

7 Letters

Noun definition for outgive (1)

outlustres

10 Letters

Noun definition for outlustres (3)

outlandishly

12 Letters

Noun definition for outlandishly (2)

outstatistic

12 Letters

Noun definition for outstatistic (2)

outhomering

11 Letters

Noun definition for outhomering (1)

outbarks

8 Letters

Noun definition for outbarks (1)

outbat

6 Letters

Noun definition for outbat (1)

Starts with OV12 words

overbuy

7 Letters

Noun definition for overbuy (1)

overdrape

9 Letters

Noun definition for overdrape (2)

overgalling

11 Letters

Noun definition for overgalling (1)

overdesirousness

16 Letters

Noun definition for overdesirousness (1)

overreckon

10 Letters

Noun definition for overreckon (1)

overclears

10 Letters

Noun definition for overclears (2)

overreached

11 Letters

Noun definition for overreached (1)

overfat

7 Letters

Noun definition for overfat (2)

overbraced

10 Letters

Noun definition for overbraced (2)

overconcentrate

15 Letters

Noun definition for overconcentrate (2)

overjealous

11 Letters

Noun definition for overjealous (1)

overcovetous

12 Letters

Noun definition for overcovetous (1)

Starts with OX11 words

oxygnathous

11 Letters

Noun definition for oxygnathous (1)

oxychlorate

11 Letters

Noun definition for oxychlorate (3)

oxalises

8 Letters

Noun definition for oxalises (2)

oxyuriases

10 Letters

Noun definition for oxyuriases (2)

oxea

4 Letters

Noun definition for oxea (1)

oxygenant

9 Letters

Noun definition for oxygenant (2)

oxonolatry

10 Letters

Noun definition for oxonolatry (1)

oxytonize

9 Letters

Noun definition for oxytonize (1)

oxysulphides

12 Letters

Noun definition for oxysulphides (1)

oxyanthraquinone

16 Letters

Noun definition for oxyanthraquinone (1)

oxidative

9 Letters

Noun definition for oxidative (2)

Starts with OY1 words

oysterfish

10 Letters

Noun definition for oysterfish (1)

Starts with OZ2 words

ozan

4 Letters

Noun definition for ozan (2)

ozonations

10 Letters

Noun definition for ozonations (3)