There are 12 words that start with 'feto'.
| fetor | fetors | fetology |
| fetoscope | fetoscopy | fetologies |
| fetologist | fetoscopes | fetologists |
| fetoprotein | fetoscopies | fetoproteins |
Note: These 12 words that start with 'feto' are found from the USA & Canada version of the tournament Scrabble word list.