Real Dictionary

-'d
-'d is a spoken form of 'had', especially when 'had' is an auxiliary verb. It is added to the end of the pronoun which is the subject of the verb. For example, 'you had' can be shortened to 'you'd'.
-'d is a spoken form of 'would'. It is added to the end of the pronoun which is the subject of the verb. For example, 'I would' can be shortened to 'I'd'.

-'d in American English 1
had

-'d in American English 2
-ed used

'd in American English
contraction of: had

'd in British English
contraction of: would or had

D
variable noun: D is the fourth letter of the English alphabet.
variable noun: If you get a D as a mark for a piece of work or in an exam, your work is below average or poor.
variable noun: In music, D is the second note in the scale of C major.

D in American English
noun: the fourth letter of the English alphabet, a consonant

D in American English 1
a Roman numeral for 500; with a superior bar (), 500,000 or less often, 5,000
below average in quality
the fourth letter of the English alphabet: from the Greek delta, a borrowing from the Phoenician
abbreviation

D in American English 2
dairy: prepared according to kashrut or kosher laws
dam (in pedigrees)
symbol: the fourth in order or in a series

d in British English
abbreviation for: Deutsch: indicating the serial number in the catalogue (1951) of the musical compositions of Schubert made by Otto Deutsch (1883–1967)
noun: the fourth letter and third consonant of the modern English alphabet
symbol for: 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
symbol for: density or relative density

D- in American English
dextrorotatory
having an asymmetrical, right-handed spatial arrangement of atoms: usually printed as a small capital

d. in American English
abbreviation: day
abbreviation: give

d. in British English
abbreviation for: (in animal pedigrees) dam
abbreviation for: Democrat(ic)

d' in American English 1
preposition: (used in French names as an elided form of de)

d' in American English 2
contraction of: do or did (before you)

d'- in American English
do