There are 12 words that end with 'ecies'.
| species | dioecies |
| monoecies | secrecies |
| ecospecies | prophecies |
| subspecies | cenospecies |
| multispecies | interspecies |
| intraspecies | supersecrecies |
Note: These 12 words that end with 'ecies' are found from the USA & Canada version of the tournament Scrabble word list.