The alphabet of which the letter Sad is a part includes how many letters?
Sad (surah) Sūrat Ṣād (Arabic: سورة ص‎ ‎ , "The Letter Sad") is the 38th sura of the Qur'an with 88 ayat and 1 sajdah (39:24). Sad (ص) is the name of the eighteenth letter in the Arabic alphabet.
Elfdalian alphabet The Dalecarlian alphabet consists of 32 letters, 25 derived from the Swedish alphabet, and seven additional letters: vowels with an ogonek diacritic, denoting nasality: ("Ąą", "Ęę", "Įį", "Ųų", "Y̨y̨", and "Ą̊ą̊") as well as the consonant "Ðð" (eð), denoting voiced dental fricative, as 'th' in 'father'. The letters "Cc", "Qq", "Xx" and "Zz" are only used in names and foreign words. The alphabet is used for the Elfdalian language and for other Dalecarlian dialects.