There are a total of 1460 9-letter words starting with the letter 'o', and the number may vary in different dictionaries. You can specify the dictionary and order.
- operation 13
- operating 15
- otherwise 14
- organized 22
- officials 19
- objective 28
- ownership 18
- ourselves 15
- obviously 20
- objection 25
- operators 12
- obtaining 16
- occurring 19
- ordinance 15
- occasions 16
- organisms 15
- operative 16
- oxidation 18
- orchestra 14
- offensive 20
- observing 19
- observers 16
- obstacles 16
- obedience 17
- oversight 17
- opponents 17
- offenders 17
- offerings 18
- occupancy 25
- offspring 21
- obligated 16
- overnight 18
- occupying 24
- overruled 16
- occupants 20
- overthrow 18
- oppressed 16
- originate 12
- ornaments 14
- omissions 13
- organizer 21
- overlying 19
- outsiders 11
- occlusion 18
- offending 20
- outbreaks 17
- orthodoxy 21
- originals 13
- outwardly 17
- outlining 15
- oxidative 21
- obscurity 18
- optimized 25
- oxidizing 29
- obsession 13
- olfactory 18
- obstinate 13
- outgrowth 17
- outskirts 14
- occipital 19
- obliquely 26
- overboard 17
- overseers 13
- obnoxious 21
- overheard 16
- optically 19
- oblivious 18
- obsessive 16
- organised 13
- outspoken 18
- objecting 27
- obscenity 18
- ovulation 16
- opposites 15
- overtaken 18
- ordinates 11
- overwhelm 22
- organizes 21
- overgrown 19
- overtures 14
- overtones 14
- overlooks 18
- onslaught 16
- optometry 17
- oligocene 12
- orphanage 17
- outermost 13
- observant 17
- outbursts 14
- opportune 17
- ombudsman 21
- overcomes 19
- oligarchy 19
- obstetric 15
- oversized 23
- obstinacy 18
- overflows 20
- orienting 13
- optimally 19
- outweighs 17
- objectors 24
- ordinated 11
- otherness 12
- onlookers 15
- obscuring 19
- outnumber 18
- octagonal 16
- oscillate 14
- oppressor 15
- osteotomy 14
- overdraft 17
- ointments 14
- overthrew 18
- obscurely 19
- overjoyed 25
- outerwear 13
- orientals 11
- overstate 13
- outfitted 14
- occlusive 21
- ominously 17
- overrides 14
- overcoats 16
- overshoot 15
- oceanside 14
- obturator 13
- obstructs 16
- obliquity 25
- overviews 20
- overpower 19
- oligopoly 18
- opacities 15
- occupiers 19
- orderlies 11
- oblongata 16
- ostracism 15
- operculum 21
- oncogenes 16
- oncogenic 19
- overheads 16
- obviating 19
- overrated 14
- overdrawn 18
- outlawing 17
- organists 12
- overloads 15
- obeisance 16
- obtrusive 17
- overdrive 18
- officiate 18
- obligates 15
- orbicular 17
- optimists 15
- ornithine 13
- offshoots 17
- oligomers 15
- overstory 15
- officious 19
- opticians 16
- overbroad 17
- overtaxed 21
- overhangs 18
- optimizer 24
- organelle 14
- overtakes 17
- overhauls 17
- olecranon 15
- oratorios 9
- outrigger 14
- oilfields 15
- outspread 14
- omnibuses 17
- outsource 14
- orderings 11
- officered 19
- oxidizers 26
- occultism 20
- outhouses 13
- obsequies 22
- oligarchs 17
There are 1460 9-letter words starting with the letter o in the well-known word game dictionary, 1096 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 1401 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 1060 in the Words with Friends (WWF) dictionary.
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