There are 14 words that start with 'orbi'.
| orbit | orbier | orbing |
| orbits | orbiest | orbital |
| orbited | orbiter | orbitals |
| orbiters | orbiting | orbicular |
| orbiculate | orbicularly | |
Note: These 14 words that start with 'orbi' are found from the USA & Canada version of the tournament Scrabble word list.