There are 18 words that end with 'nnier'.
bonnier | cannier | funnier |
ginnier | fennier | finnier |
runnier | pannier | punnier |
sunnier | tinnier | wennier |
brannier | skinnier | whinnier |
squinnier | uncannier | chansonnier |
Note: These 18 words that end with 'nnier' are found from the USA & Canada version of the tournament Scrabble word list.