There are 14 words that start with 'oxidi'.
| oxidic | oxidise | oxidize | 
| oxidised | oxidiser | oxidises | 
| oxidized | oxidizer | oxidizes | 
| oxidisers | oxidising | oxidizers | 
| oxidizing | oxidizable | |
Note: These 14 words that start with 'oxidi' are found from the USA & Canada version of the tournament Scrabble word list.