There are 15 words that end with 'hedra'.
| ephedra | exhedra |
| cathedra | trihedra |
| decahedra | hexahedra |
| octahedra | polyhedra |
| icosahedra | pentahedra |
| tetrahedra | dodecahedra |
| rhombohedra | trapezohedra |
| trisoctahedra | |
Note: These 15 words that end with 'hedra' are found from the USA & Canada version of the tournament Scrabble word list.