The name abjad is based on the Arabic alphabet's first (in its original order) four letters — corresponding to a, b, j, and d — to replace the more … 展开

The first abjad to gain widespread usage was the Phoenician abjad. Unlike other contemporary scripts, such as cuneiform and Egyptian hieroglyphs, the Phoenician script consisted of only a … 展开

The abjad form of writing is well-adapted to the morphological structure of the Semitic languages it was developed to write. This is because … 展开

• Ager, Simon (2015). "Abjads / Consonant alphabets". Omniglot.
• Daniels, Peter T. (2013). "The Arabic Writing system". In Owens, Jonathan (ed.). The Oxford Handbook of … 展开

According to the formulations of Peter T. Daniels, abjads differ from alphabets in that only consonants, not vowels, are represented among the basic graphemes. Abjads differ from abugidas, another category defined by Daniels, in that in abjads, the vowel sound … 展开

Impure abjads have characters for some vowels, optional vowel diacritics, or both. The term pure abjad refers to scripts entirely lacking in vowel indicators. However, most modern … 展开

• Abjad numerals (Arabic alphanumeric code)
• Abugida
• Gematria (Hebrew & English system of alphanumeric code)
• Numerology 展开