There are 14 words that start with 'septe'.
| septet | septets |
| septette | septenary |
| septettes | septenarii |
| septennial | septenaries |
| septenarius | septentrion |
| septennially | septentrions |
| septentrional | septendecillion |
Note: These 14 words that start with 'septe' are found from the USA & Canada version of the tournament Scrabble word list.