There are 11 words that start with 'curio'.
| curio | curios |
| curiosa | curious |
| curiosity | curiouser |
| curiously | curiousest |
| curiosities | curiousness |
| curiousnesses | |
Note: These 11 words that start with 'curio' are found from the USA & Canada version of the tournament Scrabble word list.