There are 13 words that start with 'volum'.
| volume | volumed |
| volumes | voluming |
| volumeter | volumeters |
| volumetric | voluminous |
| voluminosity | voluminously |
| volumetrically | voluminosities |
| voluminousness | |
Note: These 13 words that start with 'volum' are found from the USA & Canada version of the tournament Scrabble word list.