There are 16 words that start with 'skul'.
| skulk | skull |
| skulks | skulls |
| skulked | skulker |
| skulled | skulkers |
| skulking | skullcap |
| skulling | skullcaps |
| skulduggery | skullduggery |
| skulduggeries | skullduggeries |
Note: These 16 words that start with 'skul' are found from the USA & Canada version of the tournament Scrabble word list.