There are 18 words that start with 'valv'.
| valve | valval | valvar |
| valved | valves | valvate |
| valving | valvula | valvule |
| valvelet | valvulae | valvular |
| valvules | valveless | valvelets |
| valvelike | valvulitis | valvulitises |
Note: These 18 words that start with 'valv' are found from the USA & Canada version of the tournament Scrabble word list.