There are 17 9-letter words that end with 'nation'.
| carnation | cognation | crenation |
| damnation | darnation | connation |
| emanation | nunnation | phonation |
| pinnation | planation | ruination |
| ozonation | pronation | tarnation |
| urination | vernation | |
Note: These 17 9-letter words that end with 'nation' are found from the USA & Canada version of the tournament Scrabble word list.