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In linguistics, a grapheme is the smallest functional unit of a writing system. [1] The word grapheme is derived from Ancient Greek gráphō ('write'), and the suffix -eme by analogy with phoneme and other emic units. The study of graphemes is called graphemics. The concept of graphemes is abstract and similar to the notion in computing of a ...
A phoneme is a sound or a group of different sounds perceived to have the same function by speakers of the language or dialect in question. An example is the English phoneme /k/, which occurs in words such as cat, kit, scat, skit.
A phonogram is a grapheme i.e. one or more written characters which represent a phoneme (speech sound), [1] rather than a bigger linguistic unit such as morphemes or words. [2] For example, "igh" is an English-language phonogram that represents the / aɪ / sound in "high".
An example of a student's increasing ability to construct a rhyming word pattern with the oa grapheme would be as follows: road, toad, load and goad. [94] Examples of other recognizable graphemes that allow students to construct rhyming word patterns are at, igh, ew, oo, ou and air. [95]
There are two distinct types of deviation from the phonemic ideal. In the first case, the exact one-to-one correspondence may be lost (for example, some phoneme may be represented by a digraph instead of a single letter), but the "regularity" is retained: there is still an algorithm (but a more complex one) for predicting the spelling from the pronunciation and vice versa.
The concept of the grapheme is similar to that of the phoneme used in the study of spoken languages. Likewise, as many sonically distinct phones may function as the same phoneme depending on speaker, dialect, and context, many visually distinct glyphs (or graphs ) may be identified as the same grapheme.
A letter is a type of grapheme, the smallest functional unit within a writing system. Letters are graphemes that broadly correspond to phonemes, the smallest functional units of sound in speech. Similarly to how phonemes are combined to form spoken words, letters may be combined to form written words.
Graphemics or graphematics is the linguistic study of writing systems and their basic components, i.e. graphemes.. At the beginning of the development of this area of linguistics, Ignace Gelb coined the term grammatology for this discipline; [1] later some scholars suggested calling it graphology [2] to match phonology, but that name is traditionally used for a pseudo-science.