D, d (di) n., pl The fourth letter of the english alphabet, a consonant Any spoken sound represented by this letter. The fourth letter of the english alphabet, a consonant. See examples of d used in a sentence. D, letter that has retained the fourth place in the alphabet from the earliest point at which it appears in history
It corresponds to semitic daleth and greek delta (δ) The form is thought to derive from an early pictograph, possibly egyptian, indicating the folding door of a tent. A note having a frequency of 293.66 hertz (d above middle c) or this value multiplied or divided by any power of 2 The second note of the scale of c major Used when giving the dates of someone's birth and death:
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