D, or d, is the fourth letter of the latin alphabet, used in the modern english alphabet, the alphabets of other western european languages and others worldwide. Any of the speech sounds that this letter represents, as, in english, the (d) of dog. 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) Refers to the fourth letter of the alphabet (e.g., “the word ‘dog’ starts with the letter d”) The form is thought to derive from an early pictograph, possibly egyptian, indicating the folding door of a tent.
The fourth letter of the english alphabet, a consonant Any spoken sound represented by this letter. The fourth letter of the english alphabet, a consonant. See examples of d used in a sentence.
In some languages and transcription systems, d may also represent other sounds, such as /t/ or /ð/. 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
