There are 21 words that end with 'tti'.
petti | putti | tutti |
cavetti | stretti | tofutti |
banditti | amaretti | amoretti |
biscotti | chapatti | confetti |
libretti | cavaletti | manicotti |
spaghetti | vaporetti | zucchetti |
cavalletti | prosciutti | cappelletti |
Note: These 21 words that end with 'tti' are found from the USA & Canada version of the tournament Scrabble word list.