leave of absence example letters

A letter is an element in an alphabetic system of writing, such as the Greek alphabet and its descendants. Each letter in the written language is usually associated with one phoneme in the spoken form of the language.

Written signs in other writing systems are best called syllabograms which denote a syllable or logograms which denote a word or phrase. As symbols that denote speech, letters are associated with phonetics. In a purely phonemic alphabet, a single phoneme is denoted by a single letter, but in history and practice letters often denote more than one phoneme.

A pair of letters designating a single phoneme is called a digraph. Examples of digraphs in English include ch, sh and th. A phoneme can also be represented by three letters, called a trigraph. The combination sch in German. A letter may also be associated with more than one phoneme, with the phoneme depending on the surrounding letters or etymology of the word.

As an example of positional effects, the Spanish letter c is pronounced k before a, o, or u cantar, corto, cuidado, Colorado, catalac, but is pronounced s before e or i centimo, ciudad.

Letters also have specific names associated with them. These names may differ with language, dialect and history. Z, is usually called zed in all English-speaking countries except the U.S, where it is named zee. Letters, as elements of alphabets, have prescribed orders. This may generally be known as alphabetical order though collation is the science devoted to the complex task of ordering and sorting of letters and words in different languages.

In Spanish, ñ is a separate letter being sorted after n. In English, n and ñ are sorted alike. Letters may also have numerical value. This is true of Roman numerals and the letters of other writing systems. In English, Arabic numerals are typically used instead of letters.  

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