There are 21 words that end with 'teen'.
teen | lateen | poteen |
sateen | canteen | fifteen |
posteen | potteen | sixteen |
ratteen | preteen | subteen |
umpteen | eighteen | fourteen |
nineteen | postteen | thirteen |
seventeen | velveteen | mangosteen |
Note: These 21 words that end with 'teen' are found from the USA & Canada version of the tournament Scrabble word list.