Word · CEFR A2 · Frequency #440
Fully loadedcertain
某个；某一
definite but not named or identified
- 1.
Sure in one's mind, positive; absolutely confident in the truth of something.
心中确信；对某事绝对肯定
- 2.
definite but not specified or identified
明确但未具体指明或确定的
- 3.
Not to be doubted or denied; established as a fact.
无可置疑的；确凿的事实
- 4.
having or feeling no doubt or uncertainty; confident and assured
没有疑问或不确定；自信而坚定的
- 5.
Sure to happen, inevitable; assured.
必然发生的；不可避免的
- 6.
established beyond doubt or question; definitely known
毫无疑问或质疑地确立；确切已知的
- 7.
Unfailing; infallible.
万无一失的；绝对可靠的
- 8.
Fixed; regular; determinate.
固定的；有规律的；确定的
- 9.
Particular and definite, but unspecified or unnamed; used to introduce someone or something without going into further detail.
特定而明确的,但未具体说明的；用于引出某人或某事而不详述
- 10.
Named but not previously mentioned.
已提及名字但先前未提到的
- 11.
Used before the name of someone famous that people are expected to know.
用于众人熟知的某位名人姓名前
心中确信；对某事绝对肯定；明确但未具体指明或确定的；无可置疑的；确凿的事实；没有疑问或不确定；自信而坚定的；必然发生的；不可避免的
In use
There is a certain restaurant near the station that serves amazing dumplings.
In certain situations, it is better to stay quiet than to speak.
She has a certain charm that is hard to describe.
set aside a certain sum each week
to a certain degree
certain breeds do not make good pets
certain members have not paid their dues
a certain popular teacher
a certain Mrs. Jones
Connections
Collocations
- certain about
- 对…有把握
- I'm not certain about the exact date.我不确定具体日期。
- certain of
- 确信
- She was certain of her success.她确信自己能成功。
- for certain
- 确定地
- Nobody knows for certain what happened.没有人确切知道发生了什么。
- a certain
- 某个；某种
- A certain person called while you were out.你出去时有个某人打电话来。
- certain to
- 一定会
- The plan is certain to fail.这个计划一定会失败。
- make certain
- 确保
Learner notes
Memory Tip
联想证书（certificate）代表确定无疑，记住certain意为‘确定的’。
Context & Register
表示‘某个’或‘某种’，用于不具体指明的事物，语气中性。通常用于正式或书面语境，也可用于日常交流。
Pronunciation & Spelling
Only curtain rhymes with certain (both /ˈkɜːrtən/). Other words ending in -ain or -tain (e.g., captain, villain, bargain, mountain, fountain) are spelled similarly but pronounced differently (e.g., /-ɪn/ or /-ən/).
High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Usage priority
Collins 词频等级为 3，建议结合例句记忆，而不是只背中文释义。
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 DICTIONARY_API_DEV, ECDICT, WIKTIONARY.