There are 18 words that start with 'convi'.
| convict | convicts |
| convince | convicted |
| convinced | convincer |
| convinces | convivial |
| convicting | conviction |
| convincers | convincing |
| convictions | convivially |
| convincingly | conviviality |
| convincingness | convivialities |
Note: These 18 words that start with 'convi' are found from the USA & Canada version of the tournament Scrabble word list.