There are 15 words that start with 'compac'.
| compact | compacts |
| compacted | compacter |
| compactly | compactor |
| compacters | compactest |
| compacting | compaction |
| compactors | compactible |
| compactions | compactness |
| compactnesses | |
Note: These 15 words that start with 'compac' are found from the USA & Canada version of the tournament Scrabble word list.