Word · Frequency #22793
cipher
密码；暗号；加密法
a system or method of secret writing; code
- 1.
A numeric character.
数字字符。
- 2.
Any text character.
任何文本字符。
- 3.
A combination or interweaving of letters, as the initials of a name.
字母的组合或交织,如姓名的首字母组合。
- 4.
A method of transforming a text in order to conceal its meaning.
一种为了隐藏文本含义而对其进行转换的方法。
- 5.
A cryptographic system using an algorithm that converts letters or sequences of bits into ciphertext.
一种使用算法将字母或位序列转换为密文的密码系统。
- 6.
Ciphertext; a message concealed via a cipher.
密文；通过密码隐藏的信息。
- 7.
A grouping of three digits in a number, especially when delimited by commas or periods
数字中三位一组的分组,尤指用逗号或句点分隔的。
- 8.
A fault in an organ valve which causes a pipe to sound continuously without the key having been pressed.
管风琴阀门的一种故障,导致音管在未按键时持续发声。
- 9.
Someone or something of no importance.
无关紧要的人或事物。
密文；加密消息；数字；数码；字符；文本字符；花押字；交织字母；无足轻重的人（或物）；小人物
In use
The spy sent a cipher that only the agent could decode.
In the large corporation, he was merely a cipher, easily overlooked.
The ancient manuscript was written in a cipher that took years to break.
a cipher (secret code)
cipher 此处指加密后的信息。
The spy sent the message in a cipher.
间谍用密码发送了信息。
a cipher (unimportant person)
比喻用法，指没有影响力的人。
In the committee, he was a mere cipher.
在委员会中，他不过是个无足轻重的人。
in cipher
表示以密码形式。
Connections
Collocations
- break a cipher
- 破解密码
- The mathematicians worked for months to break the cipher.数学家们工作了数月来破解这个密码。
- substitution cipher
- 替换密码
- This substitution cipher swaps each letter for another letter according to a fixed rule.这种替换密码按照固定规则将每个字母换成另一个字母。
- cipher text
- 密文
- The message was sent as cipher text, so only the receiver could decode it.消息以密文形式发送，因此只有接收者才能解码。
- cipher key
- 密钥
- The intelligence agency guarded the cipher key carefully.情报机构小心地保管着密钥。
- cipher machine
- 密码机
- The army used a cipher machine to send secret orders.军队使用密码机发送秘密命令。
- a mere cipher
Learner notes
Memory Tip
把要隐藏的话“塞”进编码里：cipher 读起来像“赛佛”，想象一串神秘数字和字母在比赛谁更隐蔽。
Context & Register
语域：mixed 常见场景：密码学与技术文档、日常对话与文学作品、历史或谍战语境 作为名词，cipher最常见的含义是‘密码；暗号’。在密码学或技术文档中，它多指加密算法或编码系统，属于正式用法；在日常对话或文学作品中，它也可以指代号或秘密符号，语气更中性或随意。学习时建议优先掌握这一核心义项。
Grammar Note
ciphers
Pronunciation & Spelling
Genuine rhyme: lifer /ˈlaɪfə/. Lookalikes that sound different: siphon /ˈsaɪfən/ (same first syllable /saɪf/ but different ending), sphere /sfɪə/ (only the ph digraph matches), philosopher /fɪˈlɒsəfə/ (shares the final -pher and /fə/ but has different stress).
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.