| Word | Definitions | Synonyms |
|---|---|---|
| ducal | (adjective) of or belonging to or suitable for a duke | - |
| duckbill | (adjective) having a beak resembling that of a duck | Synonyms: duck-billed |
| ductile | (adjective) capable of being shaped or bent or drawn out | Synonyms: malleable, pliable, pliant, tensile, tractile |
| (adjective) easily influenced | Synonyms: malleable | |
| ductless | (adjective) not having a duct | - |