1. the state of being completely sure about something
確信無疑的狀態；確定性
She spoke with absolute certainty about the outcome.
她對結果的預測說得斬釘截鐵。
There is no certainty that the project will be approved.
這個專案能否獲得批准，目前還沒有定論。
Certainty Meaning（定義、用法、例句與發音）
certainty
noun
快速理解
What does "Certainty" mean?What are 2-3 core uses of "Certainty"?
Certainty 指對某事確定無疑的狀態或事實。
- 1
確信無疑的狀態
EN: the state of being completely sure about something
翻譯: 對某事完全確信的狀態
- 2
確定的事實
EN: something that is certain to happen or is definitely true
翻譯: 必定會發生或絕對真實的事情
- 3
信心與把握
EN: confidence and conviction in one's knowledge or belief
翻譯: 對自己的知識或信念所抱持的信心與堅信
小提醒：Certainty 是不可數名詞，通常不加 'a' 或複數 's'。例如，說 'There is a certainty' 或 'certainties' 較少見，通常用 'There is certainty' 或 'It is a certainty'（後者將整個事件視為一個確定的單一概念）。
發音（How to Pronounce "Certainty" in English）
How to pronounce "Certainty" in English?"Certainty" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Certainty" from YouTube Videos
Steve Jobs' 2005 Stanford Commencement Address
Stanford
“Having lived through it, I can now say this to you with a bit more certainty than when death was a useful but purely intellectual concept.”
(1 out of 12)
Definitions（定義）
What are the definitions of "Certainty"?How does "Certainty" change by context?
2. something that is definitely true or will definitely happen
確定無疑的事；必然發生的事
Death and taxes are the only certainties in life.
死亡和稅賦是人生中唯二確定的事。
It's a virtual certainty that prices will rise next year.
明年價格幾乎肯定會上漲。
3. the quality of being reliable or definite
可靠性；明確性
The data lacks certainty, so we cannot draw firm conclusions.
這份數據缺乏確定性，因此我們無法得出確切的結論。
He demanded more certainty in the contract terms.
他要求合約條款必須更加明確。
Grammar & Patterns（句型）
What are common sentence patterns for "Certainty"?How to make natural sentences with "Certainty"?
| Pattern | Meaning | Example |
|---|---|---|
| certainty + of + noun phrase | 對…的確定性 | There is no certainty of success in such a risky venture. (在這項高風險的投資中，沒有成功的確定性。) |
| with certainty | 肯定地、確信地 | I can say with certainty that she will arrive on time. (我可以肯定地說她會準時到達。) |
| a degree / level of certainty | 一定程度的確定性 | The new evidence provided a higher degree of certainty about the suspect's identity. (新證據為嫌疑人的身分提供了更高程度的確定性。) |
| lack of certainty | 缺乏確定性 | The lack of certainty about the future made everyone anxious. (對未來缺乏確定性讓每個人都感到焦慮。) |
| express certainty | 表達確定性 | The witness expressed certainty about what he saw. (證人對他看到的事情表達了確定性。) |
用法說明
How is "Certainty" different from similar structures?What usage mistakes are common with "Certainty"?
certainty of doing vs certainty to do
- certainty of doing 用於表達對「某個事件或動作正在發生或將會發生」的確定性，強調的是對「事件本身」的肯定。介系詞
of後面接動名詞 (V-ing)。 - certainty to do 則用於表達對「某個主體將會執行某個動作」的確定性，強調的是「主體」的必然行為。這裡的
to do是不定詞，用來修飾前面的名詞。 - 在
There is no certainty...或We cannot say with any certainty...這類否定或疑問句型中，兩種結構都可能出現，但語意焦點略有不同。 EN: There is a high certainty of the project being completed on time. 翻譯: 這個專案準時完成的可能性非常高。
EN:She is a certainty to win the election.
翻譯:她肯定會贏得選舉。
總結建議
一般來說，certainty of doing 用於描述事件的確定性，而 certainty to do 則用於描述某人或某物必然會做出的行為。
易混淆對比
What is the difference between "Certainty" and similar words?How to choose "Certainty" vs alternatives?
certainty vs confidence
「certainty」指客觀上毫無疑問的事實或狀態；「confidence」則強調主觀上的信念或信任感。
certainty vs assurance
「certainty」是內在的確定狀態；「assurance」常指來自外部的保證或承諾。
certainty vs conviction
「certainty」側重於事實的確定性；「conviction」強調個人堅定不移的信念或看法。
口語用法
How is "Certainty" used in spoken English?What is the spoken vs formal difference for "Certainty"?
引述
在口語中，常用來引述或轉述一個已知或公認的事實。 EN: There's a general certainty that the meeting will be postponed. 翻譯: 大家普遍都確定會議會延期。
EN:With the market trends, there's no certainty about future prices.
翻譯:以市場趨勢來看，未來的價格沒有什麼確定性。
語氣強調
用來加強語氣，表示毫無疑問或絕對的狀態。 EN: I can say with absolute certainty that she was here. 翻譯: 我可以百分之百確定她當時在這裡。
EN:He spoke with such certainty that everyone believed him.
翻譯:他說得如此肯定，以至於每個人都相信了他。
停頓填充
有時在思考或組織語句時，用作填充詞，帶有「嗯，可以肯定的是...」的意味。 EN: Well, the certainty is, we need more data before deciding. 翻譯: 嗯，可以肯定的是，我們需要更多數據才能做決定。
EN:And the, you know, certainty about the whole situation is still low.
翻譯:而整個情況的，你知道，確定性仍然很低。
正式寫作注意：在正式或學術寫作中，應避免將 "certainty" 用作口語中的停頓填充詞。建議使用更精確、結構完整的句子來表達確定性，例如 "It is certain that..." 或 "There is a high degree of certainty regarding..."。
常見短語
What common collocations use "Certainty"?What fixed phrases with "Certainty" should I remember?
with certainty
prepositional phrase
肯定地，確切地
a degree of certainty
noun phrase
一定程度的確定性
moral certainty
noun phrase
道德上的確信（指基於證據的高度確信，但非絕對）
cast doubt on the certainty of
verb phrase
對...的確定性提出質疑
absolute certainty
noun phrase
絕對的確定性
lack of certainty
noun phrase
缺乏確定性
beyond any certainty
prepositional phrase
超出任何確定的範圍；極不確定
常見錯誤
What are common mistakes with "Certainty"?Which "Certainty" sentences look correct but are wrong?
×I have a certainty that he will come.
✓I am certain that he will come.
在英文中，'certainty' 是名詞，通常不直接與 'have' 搭配來表達個人確信。表達個人確信時，更自然的說法是使用形容詞 'certain' 或片語 'have no doubt'。
×There is a certainty to rain tomorrow.
✓It is certain to rain tomorrow. / There is a certainty of rain tomorrow.
'certainty' 作為名詞，其後常接 'of + 名詞' 或 'that' 子句來描述確定的內容。直接接不定詞 'to rain' 是不正確的。使用 'It is certain to...' 的句型則正確。
×The certainty is high for his victory.
✓The probability/likelihood of his victory is high.
雖然 'certainty' 意指確定性，但通常不用 'high' 或 'low' 來修飾其程度。'Certainty' 本身已接近絕對。要表達可能性高低，應使用 'probability' 或 'likelihood'。
×He said with a full certainty.
✓He said with absolute/complete certainty.
修飾 'certainty' 表示程度的形容詞常用 'absolute', 'complete', 'total', 或 'near'，而不是 'full'。這是固定搭配的習慣用法。
×This plan will give us more certainty.
✓This plan will give us greater certainty. / This plan will increase our certainty.
在比較級中，'certainty' 作為抽象名詞，通常與 'greater' 或 'more' 搭配，但 'greater certainty' 是更常見且地道的說法。動詞也可用 'increase' 或 'provide'。
詞形變化
What are the word forms of "Certainty"?What are tense/participle forms of "Certainty"?