There are 18 words that start with 'attac'.
| attach | attack | attache |
| attacks | attached | attacher |
| attaches | attacked | attacker |
| attachers | attaching | attackers |
| attacking | attackman | attackmen |
| attachable | attachment | attachments |
Note: These 18 words that start with 'attac' are found from the USA & Canada version of the tournament Scrabble word list.