英汉词典

1. 信;信函
    If you write a letter to someone, you write a message on paper and send it to them, usually by post.

    e.g. I had received a letter from a very close friend.
           我收到一个很要好的朋友的来信。
    e.g. ...a letter of resignation...
           辞职信

2. 字母
    Letters are written symbols which represent one of the sounds in a language.

    e.g. ...the letters of the alphabet.
           字母表中的字母
    e.g. ...the letter E.
           字母E

3. （校队队衣的）校名首字母标志（以嘉许优秀运动员）
    If a student earns a letter in sports or athletics by being part of the university or college team, they are entitled to wear on their jacket the initial letter of the name of their university or college.

    e.g. Valerie earned letters in three sports: volleyball, basketball, and field hockey.
           瓦莱丽在排球、篮球和曲棍球三个项目上获得了佩戴校名首字母标志的荣誉。

4. 赢得佩戴校名首字母标志的荣誉
    If a student letters in sports or athletics by being part of the university or college team, they are entitled to wear on their jacket the initial letter of the name of their university or college.

    e.g. Burkoth lettered in soccer.
           伯考思在足球上获得了佩戴校名首字母标志的荣誉。

5. see also: capital letter;covering letter;dead letter;love letter;newsletter;poison-pen letter

6. （钻）法律字眼
    If you say that someone keeps to the letter of the law, you mean that they act according to what is actually written in the law, rather than according to the general principles of it, especially when you disapprove of this.

letter

    e.g. They had stuck to the letter of the law and in my view they should be ashamed.
           他们死抠法律字眼。依我看他们应该感到惭愧。

7. （执行指示）毫厘不爽地，不折不扣地
    If you say that someone carries out instructions to the letter, you mean that they do exactly what they are told to do, paying great attention to every detail.

letter的解释

    e.g. She obeyed his instructions to the letter.
           她分毫不差地遵照他的吩咐去做。