Definition of "alphabet" in Anglais

noun

1. The set of letters used when writing in a language.

   • The Greek alphabet has only twenty-four letters.
   • In the first year of school, pupils are taught to recite the alphabet.

2. A writing system in which letters represent phonemes. (Contrast e.g. logography, a writing system in which each character represents a word, and syllabary, in which each character represents a syllable.)

3. (computer science) A typically finite set of distinguishable symbols.

   • Let L be a regular language over the alphabet #92;Sigma.

4. (India, Hong Kong, Singapore, Malaysia) An individual letter of an alphabet; an alphabetic character.

5. The simplest rudiments; elements.

6. (Internet slang, politics) An agent of the FBI, the CIA, or another such government agency.

verb

1. (rare) To designate by the letters of the alphabet; to arrange alphabetically.