There are 21 7-letter words that end with 'nia'.
| begonia | biennia | acapnia | actinia |
| ammonia | aphonia | daphnia | hryvnia |
| hymenia | mahonia | eugenia | logania |
| gazania | pogonia | petunia | splenia |
| oogonia | sthenia | syconia | titania |
| valonia | |||
Note: These 21 7-letter words that end with 'nia' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with onia, ania, enia, inia, nnia, mnia, pnia, gnia, hnia, rnia, unia, vnia, wnia.
4-letter words end with 'nia' (1)