Description: DD, dd, or other variants may refer to: DD locomotives, UIC classification for a railway locomotive with two four-axle bogies. Damage deposit, amount returned if rented object is handed back in good condition; Dd (digraph), in the Welsh language; dd (Unix), a Unix program to copy and convert files; D with stroke (Đ), noted as "DD" in VIQR notation; DD Media Group, television producer and distributor; Doctor of Divinity (DD), as the acronym for the Latin term Divinitatis Doctor. dd, an HTML element for specifying definition ... |