English alphabet

Basic features

The alphabet functions as an inventory of graphemes, not a complete map of English sounds. A single letter can represent different phonemes in different words, and many English phonemes are written with combinations of letters rather than a single character. Common features include:

• Twenty-six letters: A–Z in conventional order; letters are named, taught, and used for sorting and indexing.
• Uppercase and lowercase: Two case forms used for sentence beginnings, names, acronyms and typographic emphasis.
• Typographic variation: Serif, sans-serif and script typefaces alter stroke shapes and proportions; fonts provide many stylistic variants—see typeface and font.
• Digraphs and multigraphs: Pairs or groups of letters (for example ch, sh, th) commonly represent single sounds but are not separate alphabetic letters; see digraphs.

History and development

The English alphabet traces its lineage through the Latin alphabet, which itself developed from earlier scripts used around the Mediterranean. English began to be written in the Latin script after the Christianization of the British Isles, adapting Latin letters to represent sounds of Old English. Before that, native runic alphabets had been used for some inscriptions. Over centuries, letter shapes, spellings and orthographic conventions changed: some letters fell out of use, and combinations of letters came to represent sounds not directly signified by single letters.

Writing practice and special forms

Beyond simple letters, English orthography makes frequent use of letter pairs and borrowed symbols. Digraphs such as ck, ng, and ph represent characteristic sound combinations. Historically, ligatures such as æ and œ appeared in older spellings or in words borrowed from Latin and other languages; these are now uncommon in standard English spelling. The ampersand (&) began as a ligature of the Latin word "et" and was once taught as part of the alphabet in some traditions; learn more about the ampersand at ampersand.

Uses and importance

The alphabet underpins literacy, enabling the recording and transmission of language, law, literature and science. It is used for alphabetical ordering in dictionaries, indexes and lists; for mnemonic devices such as the alphabet song; and as a source of letter names for initials, acronyms and labels. In education, children learn letter shapes, names and typical sounds as the building blocks of reading and writing. Although the alphabet itself is standard, orthography—the relationship between letters and pronunciation—can be complex and requires learning of conventions and exceptions.

Notable distinctions

1. Letters vs. sounds: The 26 written letters do not correspond one-to-one with English phonemes; many sounds require combinations of letters or context-dependent pronunciation.
2. Regional and historical variants: Some older or regional spellings retain diacritics or foreign letters in loanwords; these are typically treated as orthographic exceptions rather than new alphabet letters.
3. Standard references: For technical and encoding purposes the modern English set matches the ISO basic Latin alphabet—the same sequence found in international standards; see ISO basic Latin alphabet and a basic list of letters.

For further reading on letter shapes, individual letter histories and detailed discussions of digraphs and orthography, consult typographic and linguistic resources linked under the entries for each letter and concept, such as digraphs, typeface and font.