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. D, d (di) n., pl The fourth letter of the english alphabet, a consonant Any spoken sound represented by this letter.
Informal., contraction of do or did before you How d'you like your eggs cooked D'you go to the movies last night? Used when giving the dates of someone's birth and death: For example, 'you had' can be shortened to 'you'd' It is added to the end of the pronoun which is the subject of the verb
Collins cobuild advanced learner’s dictionary
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