V2EX digram

Digram

释义 Definition

digram二合字母/二字母组合;指在拼写或语音中经常一起出现、共同表示一个音或一个概念的两个字母组合(如 sh, ch, th, ph)。在语言学、拼写教学和密码学中也常用。另有用法指“由两点/两节点构成的有向图”(较少见)。

发音 Pronunciation

/darm/

例句 Examples

A common digram in English is “sh.”
英语里常见的二合字母是“sh”。

The teacher explained how digrams like “th” and “ch” can represent sounds that single letters often can’t capture clearly.
老师解释了像“th”和“ch”这样的二合字母如何表示单个字母往往难以清晰表达的语音。

词源 Etymology

来自希腊语前缀 **di-**(“二、双”)+ -gram(“写下的东西、字符”),字面意思就是“由两个字符构成的书写单位”。现代语言学中用来指两字母组合;在信息处理/密码学里也常用来指二字母频率单位。

相关词 Related Words

文学作品 Literary Works

  • The Professor and the Madman(Simon Winchester) 书中涉及英语拼写与词典编纂,常会讨论字母组合与拼写现象(包括类似 digram 的概念)。
  • The Code Book(Simon Singh) 讨论密码学与文本统计分析时,会涉及字母对(digrams/bigrams)等频率概念。
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