D1 Syllabification: (D)Pronunciation: /dē/ (also d)Translate D | into French | into German | into Italian | into Spanish Definition of D noun (plural Ds or D's) 1the fourth letter of the alphabet. denoting the fourth in a set of items, categories, sizes, etc.. the fourth highest category of academic mark. (d) Chess denoting the fourth file from the left, as viewed from White’s side of the board. denoting the second-lowest-earning socioeconomic category for marketing purposes, including semiskilled and unskilled personnel. 2 (D) a shape like that of a capital D: [in combination]:the D-shaped handle a loop or ring shaped like that of a capital D. 3 (usually D) Music the second note of the diatonic scale of C major. a key based on a scale with D as its keynote. 4the Roman numeral for 500. [understood as half of CIɔ, an earlier form of M (= 1,000)]D in other Oxford dictionaries Definition of D in the British & World English dictionary
