There are 21 words that start with 'teen'.
| teen | teens | teeny |
| teener | teensy | teenage |
| teeners | teenful | teenier |
| teentsy | teenaged | teenager |
| teeniest | teensier | teenybop |
| teenagers | teensiest | teentsier |
| teentsiest | teenybopper | teenyboppers |
Note: These 21 words that start with 'teen' are found from the USA & Canada version of the tournament Scrabble word list.