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In linguistics, heterography is a property of a written language, such that it lacks a 1-to-1 correspondence between the written symbols and the sounds of the spoken language. Its opposite is homography, which is the property of a language such that written symbols of its written form and the sounds of its spoken form have a 1-to-1 correspondence. The orthography of the English language is, according to Larry Trask, a "spectacular example" of heterography. But most European languages exhibit it to some extent. Finnish is "very close" to being a systematically homographic language.〔〔 A phonemic transcription (such as a transcription of phonemes that uses the International Phonetic Alphabet, for example) is, by its nature, homographic, also.〔 The degree of heterography of a language is a factor in how difficult it is for person to learn to read that language, with highly heterographic orthographies being more difficult to learn than more homographic ones. Many people have espoused the point of view that the extreme heterographic nature of English is a disadvantage in several respects. These include, for example, Dr. Kiyoshi Makita writing in the July 1968 issue of the ''American Journal of Orthopsychiatry'', who attributes the rarity of dyslexia amongst Japanese children to the fact that Japanese is highly homographic language. ==Types== Confusion between heterographic homophonic words (homophonic heterographs or heterographic homophones) such as "piece" and "peace" is one of the symptoms of surface dyslexia, a form of dyslexia causing error when a word's spelling is not perceived to be in accord with pronunciation rules. Other homophonic heterographs in English include "I", "aye", and "eye", "right", "rite", "wright", and "write", "read", and "reed", and "there", "their" and "they're".〔 In French, examples include "sain" and "saint". Heterographs are especially problematic for written communication, in that spelling errors (e.g., in a word-processed or emailed document) due to the typist choosing the wrong member of a heterograph set will persist into the final document, even after spell-checking. This is because heterographs cannot be caught by a simple spell checker, which only inspects the word itself (i.e., which is correct in some contexts) and not the context it is in (which may indicate the need for a different spelling). Heterophonic homographs (also known as homographic heterophones) are, in contrast, words whose spoken sounds differ but whose written forms are the same. English has a few hundred heterophonic homographs,〔(【引用サイトリンク】title=Homographs )〕 examples of these latter include "read" ("will read" vs "has read").〔 The two aforementioned classes of words, along with a third class (homophonic homographs — words with different meanings whose written and spoken forms are both the same, such as "bank" in English and "杜鹃" in Chinese) are the three classes of lexical ambiguities in all languages (marked in green in the key on the right). "Heterophonic heterographs" (marked in brown) are words spelled differently and pronounced differently, consisting of all words outside of the other three classes. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Heterography and homography」の詳細全文を読む スポンサード リンク
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