cipher是什么意思_cipher怎么读_中英文释义(含例句用法)

a quantity of no importance;"it looked like nothing I had ever seen before"
"reduced to nil all the work we had done"
"we racked up a pathetic goose egg"
"it was all for naught"
"I didn"t hear zilch about it"

a person of no influence

a secret method of writing

Verb:

convert ordinary language into code;"We should encode the message for security reasons"

make a mathematical calculation or computation

中英词源

cipher 密码

来自阿拉伯语sifr,零，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。

cipher: cipher: [14] The central meaning of cipher is ‘zero’ (a word to which it is related); its use since the 16th century in connection with encrypted communications derives from the fact that in their earliest forms such codes usually consisted of numbers representing letters, and cipher had by then broadened in use from ‘nought’ to ‘any numeral’. It entered English through Old French cifre, which came via medieval Latin cifra from Arabic sifr (source of English zero); this was a nominal use of an adjective meaning ‘empty’.
=> zero
cipher (n.): late 14c., "arithmetical symbol for zero," from Old French cifre "nought, zero," Medieval Latin cifra, with Spanish and Italian cifra, ultimately from Arabic sifr "zero," literally "empty, nothing," from safara "to be empty;" loan-translation of Sanskrit sunya-s "empty." The word came to Europe with Arabic numerals. Originally in English "zero," then "any numeral" (early 15c.), then (first in French and Italian) "secret way of writing; coded message" (a sense first attested in English 1520s), because early codes often substituted numbers for letters. Klein says Modern French chiffre is from Italian cifra.
cipher (v.): "to do arithmetic" (with Arabic numerals), 1520s, from cipher (n.). Meaning "to write in code" is from 1560s. Related: Ciphered; ciphering.

词态变化

复数 ciphers;

权威造句

1. a message in cipher: 密码信

2. All important plans were sent to the police in cipher.: 所有重要计划均以密码送往警方.

3. It"s a telegram in cipher.: 这是密码电报.

4. He"s a mere cipher in the company.: 他在公司里是个无足轻重的小人物.

5. I couldn"t cipher out his motives.: 我猜不出他的动机.

近反义词

cipher key 密码电报注解,密码索...

autokey cipher 自密钥密码

random cipher 随机密码

cipher mask 密码消隐

stream cipher 流密码

permutation cipher 置换密码

cipher device 密码装置

cipher feedback 密码反馈

cipher text 密码正文

cipher code 密码

substitution cipher 代换密码,代用密码,...

cipher message 密码电报

transposition cipher 移位密码

standard cipher 标准密码

pure cipher 纯密码

additive cipher 加性密码

cipher officer 大使馆中之密码翻译员...

affine cipher 仿射密码

block cipher 分组密码

cipher in algorism 零

相似短语

in cipher 用密码

cipher device 密码装置

cipher machine 密码机

cipher text 密码正文

substitution cipher 代换密码，代用记号，代用密码

stand for cipher 等于零, 微不足道

cipher out v.<美口>想出,算出

cipher feedback 密码反馈

cipher symbol 密码符号

standard cipher 标准密码

单词分析

暂无,等待补充.

记忆方法