D

1. The fourth letter of the English alphabet, and a vocal consonant. The English letter is from Latin, which is from Greek, which took it from Phœnician, the probable ultimate origin being Egyptian. It is related most nearly to t and th ; as, Eng. d eep, G. t ief; Eng. d aughter, G. t ochter, Gr. qyga
2. The nominal of the second tone in the model major scale (that in C), or of the fourth tone in the relative minor scale of C (that in A minor), or of the key tone in the relative minor of F.
3. As a numeral D stands for 500. in this use it is not the initial of any word, or even strictly a letter, but one half of the sign &unr_; (or &unr_; ) the original Tuscan numeral for 1000.

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