There are a total of 112 10-letter words containing 'iou', and the number may vary in different dictionaries. You can specify the dictionary and order.
- abstemious 17
- amphibious 22
- areligious 14
- auspicious 18
- autoecious 15
- avaricious 18
- behaviours 20
- calcarious 18
- calumnious 20
- capricious 20
- captiously 20
- cautiously 18
- censorious 15
- commodious 21
- contagious 17
- curiousest 15
- curvacious 22
- euphonious 18
- factiously 20
- factitious 17
- fallacious 19
- fastidious 15
- fictitious 17
- flagitious 17
- gloriously 17
- graciously 19
- gregarious 15
- harmonious 17
- hellacious 18
- impervious 21
- incautious 16
- infectious 18
- inglorious 15
- lascivious 19
- licentious 16
- loquacious 25
- lubricious 19
- lugubrious 19
- lusciously 19
- magnolious 18
- mendacious 19
- monoecious 18
- mordacious 18
- mysterious 16
- nonobvious 20
- nonserious 13
- nutritious 13
- obsequious 24
- odiousness 13
- perfidious 18
- perjurious 24
- pernicious 18
- precarious 17
- preciouses 17
- preciously 20
- precocious 20
- predacious 18
- previously 21
- prodigious 17
- propitious 17
- pugnacious 21
- rebellious 16
- robustious 15
- salubrious 16
- scabiouses 17
- sequacious 24
- spaciously 20
- speciously 20
- spuriously 18
- struthious 14
- studiously 16
- suspicious 18
- tenebrious 15
- thiouracil 17
- tortiously 14
- ungracious 18
- uproarious 15
- usuriously 16
- uxoriously 22
- victorious 18
- amatorious 12
- deceptious 15
- dieciously 16
- edaciously 16
- exceptious 21
- eximiously 22
- fiddioused 16
- fiddiouses 15
- goloptious 13
- goluptious 13
- graciouses 13
- insomnious 12
- marlacious 14
- mollitious 12
- multivious 15
- outdacious 13
- palladious 13
- paroecious 14
- perviously 18
- preludious 13
- procacious 16
- prolixious 19
- quotatious 19
- rampacious 16
- reptilious 12
- ruthenious 13
- scurriours 12
- suspirious 12
- synoecious 15
- tediousome 13
- trifarious 13
- trioecious 12
There are 112 10-letter words containing iou in the well-known word game dictionary, 76 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 109 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 80 in the Words with Friends (WWF) dictionary.
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