cipher

英['saɪfə(r)]美['saɪfər]
  • n. 密码；阿拉伯数字；零；暗号
  • v. 计算；做算术；将 … 写成密码

    • 记忆方法

    词源词根法
    来自古法语cifre，零，来自意大利语cifra，零，来自阿拉伯语sifr，零，来自s-f-r，空的，空无，词源同zero.因为古人早期对数字零的认识不足，该词逐渐被赋予神秘色彩，词义也由零引申为密码。相关词=decipher解密，解码。
      noun(名词)
      1. [ C or U ] 密码;暗号
      2. [ C ] 为人所利用的小人物；无名小卒；无足轻重的人
      3. [ C ] 零

    双解例句

    noun(名词)
    1. [ C or U ] 密码;暗号

      The message was written in cipher.

      电文是用密码写的。

    2. [ C ] 为人所利用的小人物；无名小卒；无足轻重的人

      The interim government is a mere cipher for military rule.

      过渡政府不过是军事统治的一枚棋子。

    3. [ C ] 零

      If you have no children, enter a cipher in the space on the form.

      如果你没有孩子，在表上的空格里填零。

    小知识

    A cipher is a secret code, usually one that's created using a mathematical algorithm. Sometimes the message written in code is itself called a cipher.

    Cipher comes from the Arabic sifr, which means “nothing” or “zero.” The word came to Europe along with the Arabic numeral system. As early codes substituted numerals for letters to hide the word’s meaning, codes became known as ciphers. If you crack a cipher, you break the code and can understand the message. From its “zero” meaning, cipher can also be used for a person who has no influence or importance in the world.

    实用短语

    1. stream cipher

    2. hill cipher

      希尔密码,希尔加密法

    3. affine cipher

    4. trifid cipher

      三分密码

    5. playfair cipher

      波雷费密码

    6. beaufort cipher

      博福特密码

    7. great cipher

      伟大密码,巨大暗码,伟大暗码

    8. vigenère cipher

      维吉尼亚密码

    常用短语

    1. block cipher

      分组密码

    2. stream cipher

      流密码；密文流

    3. cipher out

      v. 算出；（美）想出

    4. cipher code

      密码

    单词用法

    词组短语
    block cipher分组密码；stream cipher流密码；密文流

    同义词

    nothing  /  nobody  /  shorthand