An alphabet is a complete standardized set of letters — basic written symbols — each of which roughly represents a phoneme of a spoken language, either as it exists now or as it may have been in the past.

The Alphabet, may refer to a single poem by Ron Silliman, composed between 1979 and 2004

International Phonetic Alphabet (IPA), a system of phonetic notation used by linguists to accurately and uniquely represent the sounds used in spoken human language.

Alphabets derived from the Latin

The Alphabet (song), one of the Nonsense Madrigals of György Ligeti

Latin alphabet

NATO phonetic alphabet, a common name for the international radiotelephony spelling alphabet, where letters are assigned names to make them readily understood by voice communication; often used by militaries, two-way radio operators, and airlines.

English alphabet

Alphabet song, a mnemonic used for learning the Latin alphabet

Alpha-Bits, a breakfast cereal.

Alphabet (computer science), a finite set of characters or digits.