Learn about the letter d Learn that d is a consonant in the alphabet Learn to recognize the upper and lowercase lett.more 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. 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/.
