Rhymes:English/ɛdɹə

Two syllables

 * -hedra

Three syllables

 * dihedra

Four syllables

 * decahedra
 * heptahedra
 * hexahedra
 * octahedra
 * pentahedra
 * polyhedra
 * tetrahedra

Five syllables

 * icosahedra

Eight syllables

 * icosidodecahedra

Nine syllables

 * rhombicosidodecahedra