There are 18 words that start with 'rhom'.
| rhomb | rhombi |
| rhombs | rhombic |
| rhombus | rhomboid |
| rhombical | rhomboids |
| rhombuses | rhomboidal |
| rhomboidei | rhombohedra |
| rhomboideus | rhombohedral |
| rhombohedron | rhombohedrons |
| rhombencephala | rhombencephalon |
Note: These 18 words that start with 'rhom' are found from the USA & Canada version of the tournament Scrabble word list.