Hebrew letters

Hebrew alphabet
Type	Abjad (can also be a Abugida or a true alphabet)
Languages	Hebrew and other Jewish languages
Time period	3rd century BCE to present
Parent systems	Egyptian hieroglyphs Proto-Sinaitic script Phoenician alphabet Aramaic alphabet Hebrew alphabet
Child systems	Yiddish alphabet
Sister systems	Arabic Nabataean Syriac Palmyrene Mandaic Brahmi? Pahlavi scripts Sogdian
Direction	Right-to-left
ISO 15924	Hebr, 125
Unicode alias	Hebrew
Unicode range	U+0590 to U+05FF Hebrew, U+FB1D to U+FB4F Alphabetic Presentation Forms

The Hebrew alphabet (Hebrew: עִבְרִי‎, Alefbet Ivri), known variously by scholars as the Jewish script, square script and block script, is used in the writing of the Hebrew language, as well as of other Jewish languages, most notably Yiddish, Judaeo-Spanish, and Judeo-Arabic. There have been two script forms in use; the original old Hebrew script is known as the paleo-Hebrew alphabet (which has been largely preserved, in an altered form, in the Samaritan alphabet), while the present "square" form of the Hebrew alphabet is a stylized form of the Aramaic alphabet and was known by Israel's sages as the Ashuri alphabet, since its origins were alleged to be from Assyria. Various "styles" (in current terms, "fonts") of representation of the letters exist. There is also a cursive Hebrew script, which has also varied over time and place.

The Hebrew alphabet has 22 letters. It does not have case, but five letters have different forms when used at the end of a word. Hebrew is written from right to left. Originally, the alphabet was an abjad consisting only of consonants. As with other abjads, such as the Arabic alphabet, scribes later devised means of indicating vowel sounds by separate vowel points, known in Hebrew as niqqud (plural niqqudot). In both biblical and rabbinic Hebrew, the letters א ה ו י‎ are also used as matres lectionis (the use of certain consonants to indicate a vowel) to represent vowels.