grapheme
Học thuậtThân thiện
Definition
Noun: A grapheme is the smallest meaningful unit in a writing system. It is a written symbol, such as a letter or a character, that is used to represent a sound (phoneme) or a combination of sounds in a language.
Usage
A grapheme is the fundamental building block of written language. It is the abstract concept of a written symbol, distinct from its specific visual appearance (which is called a glyph). For example, the capital letter 'A' and the lowercase 'a' are different glyphs but represent the same grapheme.
Examples
- In English, the letter 't' is a grapheme that represents the sound /t/.
- The combination 'sh' is considered a single grapheme in English because it represents one distinct sound /ʃ/, as in "ship."
- In the word "cat," there are three graphemes: c, a, and t.
Advanced Usage
- Grapheme-Phoneme Correspondence: This refers to the relationship between graphemes and the sounds they represent. English has a complex and often irregular grapheme-phoneme correspondence.
- Digraph: A grapheme made by combining two letters, like 'ch', 'th', or 'ea'.
- Trigraph: A grapheme made by combining three letters, like 'tch' or 'igh'.
Variants and Related Words
- Graphemic (adjective): Relating to or consisting of graphemes.
- The linguist studied the graphemic representation of the language.
- Allograph: A specific, contextual form of a grapheme. For example, the different ways of writing the letter 'g' (e.g., in print vs. cursive) are its allographs.
Synonyms
- Character: A printed or written letter or symbol.
- Letter: A character representing one or more sounds in a writing system.
- Symbol: A mark or character used as a conventional representation of an object, function, or process.
Related Concepts (Not Phrasal Verbs or Idioms)
- Phoneme: The smallest unit of sound in a language that can distinguish meaning (e.g., /p/ and /b/ in "pat" vs. "bat"). A grapheme is the written representation of a phoneme.
- Glyph: The specific shape, design, or form of a grapheme when it is written or printed. One grapheme can have multiple glyphs (e.g., 'a', 'a', ).
Noun
- a written symbol that is used to represent speech
- the Greek alphabet has 24 characters