There are 16 words that end with 'tack'.
| tack | stack |
| attack | retack |
| untack | restack |
| unstack | hardtack |
| haystack | reattack |
| ticktack | thumbtack |
| hackmatack | postattack |
| smokestack | counterattack |
Note: These 16 words that end with 'tack' are found from the USA & Canada version of the tournament Scrabble word list.