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 socio-economic category for marketing purposes, including semi-skilled and unskilled personnel.
2 (D) (also dee) a shape like that of a capital D: [in combination]:the D-shaped handle
a loop or ring in the shape of a capital D:a saddle with stainless steel dees
(D) a semicircle marked on a billiard table in the baulk area, with its diameter part of the baulk line, within which a player must place the cue ball when breaking off or restarting from hand.
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)]
