There are 13 words that end with 'thin'.
thin | within |
xanthin | lecithin |
overthin | superthin |
sympathin | ultrathin |
cephalothin | fucoxanthin |
lysolecithin | strophanthin |
canthaxanthin | |
Note: These 13 words that end with 'thin' are found from the USA & Canada version of the tournament Scrabble word list.