There are a total of 84 9-letter words starting with 'op', and the number may vary in different dictionaries. You can specify the dictionary and order.
- opacified 19
- opacifier 18
- opacifies 18
- opacities 15
- opalesced 17
- opalesces 16
- opensides 12
- openworks 20
- operagoer 14
- operantly 16
- operatics 15
- operating 15
- operation 13
- operatise 11
- operative 16
- operatize 20
- operators 12
- operceles 16
- opercular 17
- opercules 17
- operculum 21
- operettas 12
- operosely 15
- operosity 14
- ophidians 16
- ophiolite 15
- ophiology 18
- ophiurans 14
- ophiurids 15
- ophiuroid 16
- opificers 16
- opinioned 15
- opiumisms 19
- opobalsam 15
- opodeldoc 15
- oppilated 17
- oppilates 16
- opponency 18
- opponents 17
- opportune 17
- opposable 19
- opposably 18
- opposites 15
- oppressed 16
- oppresses 15
- oppressor 15
- oppugnant 20
- oppugners 19
- oppugning 22
- opsimaths 17
- opsimathy 19
- opsomania 13
- opsonised 14
- opsonises 13
- opsoniums 13
- opsonized 23
- opsonizes 22
- optatives 16
- optically 19
- opticians 16
- opticists 15
- optimally 19
- optimates 15
- optimific 21
- optimised 16
- optimiser 15
- optimises 15
- optimisms 18
- optimists 15
- optimized 25
- optimizer 24
- optimizes 24
- optionals 14
- optionees 13
- optioning 16
- optometer 15
- optometry 17
- optophone 16
- optronics 16
- opulences 18
- opulently 18
- opuscular 13
- opuscules 18
- opusculum 22
There are 84 9-letter words starting with "op" in the well-known word game dictionary, 66 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 83 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 67 in the Words with Friends (WWF) dictionary.
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