There are 15 words that start with 'autos'.
| autos | autosome |
| autosomal | autosomes |
| autosexing | autostrada |
| autostrade | autosomally |
| autostradas | autosuggest |
| autosuggests | autosuggested |
| autosuggesting | autosuggestion |
| autosuggestions | |
Note: These 15 words that start with 'autos' are found from the USA & Canada version of the tournament Scrabble word list.