There are 21 words that end with 'san'.
gossan | messan | paesan |
paisan | ptisan | artisan |
hexosan | medusan | zymosan |
bartisan | chitosan | diocesan |
parmesan | partisan | pentosan |
courtesan | salvarsan | triclosan |
bipartisan | nonpartisan | archdiocesan |
Note: These 21 words that end with 'san' are found from the USA & Canada version of the tournament Scrabble word list.