letter
The letter is the word system in the letter system, is the most basic unit of writing. Like the Greek alphabet and the English alphabet. A letter system will basically have more than twenty to thirty letters, such as the English letter system, a total of 26 letters. The letters form the phonemes, and the phonemes represent the voices in the spoken language. There are also letters in consonant phoneme text (eg Arabic), but only consonant letters, no vowels. Other words that do not use letters have syllable text (such as Japanese), each symbol represents a syllable, or morpheme (such as Chinese characters), each symbol can represent a word, or by a number of symbols that a word. ...