d

I = D
d UK [diː] / US [dɪ] or D UK / US noun [countable/uncountable]
Word forms "d":
singular d plural d's
Word forms "D":
singular D plural D's

1) the fourth letter of the English alphabet. D is a consonant.

2) music the second note in the musical scale of C major

3) a mark that a teacher gives to a student's work to show that it is below average

4) the roman numeral for 500

•

See:

D and C, D-Day

II UK / US abbreviation

pence: used in the system of money used in the UK before 1971