There are a total of 61 11-letter words starting with 'op', and the number may vary in different dictionaries. You can specify the dictionary and order.
- opalescence 22
- opeidoscope 18
- openability 21
- openhearted 18
- openmouthed 22
- operability 20
- operagoings 19
- operational 16
- operatising 14
- operatively 21
- operativity 19
- operatizing 23
- operculated 20
- operettists 14
- operoseness 15
- operosities 13
- ophicalcite 20
- ophicleides 21
- ophidiarium 19
- ophiolaters 16
- ophiologies 17
- ophiologist 17
- ophiomorphs 23
- ophthalmias 22
- ophthalmist 21
- opinionated 17
- opinionator 13
- opinionised 17
- opinionises 16
- opinionists 13
- opinionized 26
- opinionizes 25
- opisometers 15
- opisthosoma 19
- oppignerate 16
- oppignorate 16
- oppilations 15
- opponencies 17
- opportunely 22
- opportunism 22
- opportunist 19
- opportunity 21
- oppositions 18
- oppressions 18
- opprobrious 21
- opprobriums 24
- oppugnantly 19
- opsimathies 18
- opsiometers 15
- opsomaniacs 17
- opsonifying 23
- optimalised 16
- optimalises 15
- optimalized 25
- optimalizes 24
- optionality 18
- optocoupler 22
- optokinetic 22
- optologists 14
- optometries 17
- optometrist 17
There are 61 11-letter words starting with "op" in the well-known word game dictionary, 28 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 56 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 33 in the Words with Friends (WWF) dictionary.
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