There are 12 words that start with 'cocai'.
| cocain | cocaine |
| cocains | cocaines |
| cocainism | cocainize |
| cocainisms | cocainized |
| cocainizes | cocainizing |
| cocainization | cocainizations |
Note: These 12 words that start with 'cocai' are found from the USA & Canada version of the tournament Scrabble word list.