1. d - Noun
2. d - Adjective
3. d - Adverb
4. d - Interjection
5. d - Prefix
7. d - Adjective Satellite
8. D - Proper noun
9. d - Symbol
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.
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 / (or / ) the original Tuscan numeral for 1000.
Source: Webster's dictionary