There are 14 words that start with 'geoph'.
| geophagy | geophone |
| geophyte | geophagia |
| geophones | geophytes |
| geophytic | geophagias |
| geophagies | geophysics |
| geophysical | geophysicist |
| geophysically | geophysicists |
Note: These 14 words that start with 'geoph' are found from the USA & Canada version of the tournament Scrabble word list.