There are 17 words that start with 'gravit'.
| gravity | gravitas |
| graviton | gravitate |
| gravities | gravitino |
| gravitons | gravitases |
| gravitated | gravitates |
| gravitinos | gravitating |
| gravitation | gravitative |
| gravitations | gravitational |
| gravitationally | |
Note: These 17 words that start with 'gravit' are found from the USA & Canada version of the tournament Scrabble word list.