n.[C]

1. 信，函件
   He wrote me a letter last month.

   他上月給我寫來一封信。

2. 字母；文字
   There are 26 letters in the English alphabet.

   英語字母有二十六個。

3. （法律等的）字面意義[the S]
   He kept the letter of the law but not the spirit.

   他遵守法律的字面條文，而不是其精神實質。

4. 文字；學問[P]
   He was trained as a doctor but devoted his life to letters.

   他學的是醫但畢生從事文學。

5. 證書，許可證[P1]

vt.

1. 在……上寫字母；用字母寫
   The word "exit" was lettered on the door.

   "出口"兩字寫在門上。

vi.

1. 寫上字母

n.

1. a character representing one or more of the sounds used in speech; any of the symbols of an alphabet.
   ▸US a school or college initial as a mark of proficiency, especially in sport.
2. a written, typed, or printed communication, sent by post or messenger.
3. the precise terms of a statement or requirement:
   adherence to the letter of the law.
4. (letters) literature.
   ▸archaic erudition.
5. Printing  a style of typeface.

v.

1. inscribe or provide with letters.
2. US informal be awarded a letter as a mark of proficiency in sport.