There are 19 words that start with 'orb'.
orb | orbs | orby |
orbed | orbit | orbier |
orbing | orbits | orbiest |
orbital | orbited | orbiter |
orbless | orbitals | orbiters |
orbiting | orbicular | orbiculate |
orbicularly | ||
Note: These 19 words that start with 'orb' are found from the USA & Canada version of the tournament Scrabble word list.