| diagonal | diagonal |
| Diagonale | diagonal slant |
| Diagonalkraft | net force resultant |
| agonal | agonistic agonal |
| Diakonin | deaconess |
| Diasporal | diasporal |
| Diagonalmatrix | diagonal matrix |
| Diakon | deacon |
| Diana | Diana Diane Dayanna Deana Deanna Deanne |
| Dragoman | dragoman |
| Dragon | tarragon |
| Dagoba | dagoba |
| Dragoner | dragoon |
| hexagonal | hexagonal |
| trigonal | trigonal |
| epigonal | epigon |
| atonal | atonal |
| azonal | azonal |
| Virginal | virginal |
| Signal | signal |