There are 17 words that start with 'oxa'.
| oxalic | oxalis |
| oxalate | oxazine |
| oxalated | oxalates |
| oxalises | oxazepam |
| oxazines | oxacillin |
| oxalating | oxazepams |
| oxacillins | oxalacetate |
| oxalacetates | oxaloacetate |
| oxaloacetates | |
Note: These 17 words that start with 'oxa' are found from the USA & Canada version of the tournament Scrabble word list.