1. the state of being protected from danger or threat
安全；受到保護的狀態
The airport has strict security checks for all passengers.
機場對所有乘客都有嚴格的安全檢查。
We need to improve the security of our computer systems.
我們需要加強電腦系統的安全性。
Security Meaning（定義、用法、例句與發音）
security
noun
快速理解
What does "Security" mean?What are 2-3 core uses of "Security"?
「security」主要指安全、保障或防護的狀態，也指提供安全的人事物或金融資產。
- 1
安全狀態
EN: the state of being protected from danger or threat
翻譯: 免受危險或威脅保護的狀態
- 2
安全措施
EN: measures taken to ensure safety, such as guards or systems
翻譯: 為確保安全而採取的措施，例如警衛或系統
- 3
金融證券
EN: a financial instrument representing ownership or debt
翻譯: 代表所有權或債務的金融工具
- 4
保障感
EN: a feeling of being safe and free from worry
翻譯: 感到安全且無憂無慮的感覺
小提醒：注意「security」在金融領域指「證券」（如股票、債券），與日常的「安全」意思不同，需根據上下文判斷。
發音（How to Pronounce "Security" in English）
How to pronounce "Security" in English?"Security" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Security" from YouTube Videos
UK tells Israel not to retaliate as France set to recognise Palestinian state | BBC News
BBC News
“The people in East Jerusalem believe that the this move would push Israel to tighten more the security grip in the people in the West Bank But, most important, the people in Gaza, who believe that this step is welcomed because they they have been dreaming for 70 years, over 70 years, to have their Palestinian state And any country is recognizing their right to to have their state is welcomed.”
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Definitions（定義）
What are the definitions of "Security"?How does "Security" change by context?
2. the department or people responsible for protecting a building or area
保安部門；警衛人員
Please report any suspicious activity to building security.
請向大樓保安報告任何可疑活動。
The store hired extra security for the holiday sale.
這家商店為假日特賣增聘了額外的保安人員。
3. a feeling of being safe and free from worry
安全感；安心
Having a stable job gives him a sense of financial security.
擁有一份穩定的工作給了他財務上的安全感。
Children need the security of a loving family.
孩子需要一個充滿愛的家庭所帶來的安全感。
4. something valuable given as a guarantee for a loan
抵押品；擔保物
He used his house as security for the business loan.
他用他的房子作為商業貸款的抵押品。
The bank requires sufficient security before approving the credit.
銀行在批准信貸前要求足夠的擔保。
5. a financial instrument representing ownership or debt (e.g., stocks, bonds)
證券（如股票、債券）
He invested in various securities to diversify his portfolio.
他投資了各種證券以分散他的投資組合。
The company issued new securities to raise capital.
該公司發行了新的證券以籌集資金。
Grammar & Patterns（句型）
What are common sentence patterns for "Security"?How to make natural sentences with "Security"?
| Pattern | Meaning | Example |
|---|---|---|
| security + of + noun | ...的安全性 | The security of the building has been upgraded. (這棟大樓的安全性已升級。) |
| security + against + noun | 防範...的安全措施 | We need better security against cyber attacks. (我們需要更好的安全措施來防範網路攻擊。) |
| in + security | 處於安全狀態 | The documents are kept in maximum security. (文件被保存在最高安全等級的狀態下。) |
| for + (one's) security | 為了（某人的）安全 | For your own security, please change your password regularly. (為了您自身的安全，請定期更換密碼。) |
| a breach of security | 安全漏洞 | The data leak was a serious breach of security. (這次資料外洩是一個嚴重的安全漏洞。) |
| tighten/improve + security | 加強/改善安全 | The airport will tighten security during the holiday season. (機場將在假期期間加強安全措施。) |
| national/public/personal security | 國家/公共/個人安全 | The new policy aims to protect national security. (新政策旨在保護國家安全。) |
用法說明
How is "Security" different from similar structures?What usage mistakes are common with "Security"?
security of doing vs security to do
- security of doing 通常用於描述一個具體、已存在或習慣性的安全狀態或保障措施，強調「...的安全」這個事實或屬性。
- security to do 則常用於表達「為了做某事而提供的安全保障」或「做某事所需的安全感」，強調安全是為了達成某個目的或行動。
- 在描述一個系統、環境或安排的內在安全屬性時，較常使用 security of doing。
- 當安全是作為一種許可、能力或前提條件時，則傾向使用 security to do。 EN: The security of living in a gated community gives residents peace of mind. 翻譯: 住在門禁社區的安全性讓居民感到安心。
EN:The company provides adequate security to work remotely on sensitive projects.
翻譯:公司提供了足夠的安全保障，讓員工能遠端處理敏感專案。
EN:We discussed the security of storing data on cloud servers.
翻譯:我們討論了將資料儲存在雲端伺服器上的安全性。
EN:You need a high level of security to access the financial database.
翻譯:你需要極高的安全等級才能存取財務資料庫。
總結建議
一般情況下，描述「某種行為或狀態本身的安全性」用 security of doing，而表達「為了進行某行為所需的安全保障」則用 security to do。
易混淆對比
What is the difference between "Security" and similar words?How to choose "Security" vs alternatives?
security vs safety
security 通常指防範人為威脅（如犯罪、攻擊），而 safety 則側重於避免意外事故或自然危害。
security vs protection
security 常指整體的保全系統或狀態，而 protection 則指具體的保護行為或措施。
security vs defense
security 範圍較廣，涵蓋預防與整體安全；defense 通常指受到攻擊或威脅時的回應與抵禦。
口語用法
How is "Security" used in spoken English?What is the spoken vs formal difference for "Security"?
引述
在對話中，人們有時會用 "security" 來引述或提及某個機構、職位或概念，而非直接討論安全本身。 EN: I heard from Security that the main gate will be closed after midnight. 翻譯: 我聽警衛部門說，主大門午夜後會關閉。
EN:You need to talk to building security about getting a new access card.
翻譯:你需要跟大樓保全談談，申請一張新的門禁卡。
語氣強調
在口語中，可以透過重複或與其他詞組合來強調安全的重要性或缺乏安全感的狀態。 EN: We need security, proper security, not just a cheap lock. 翻譯: 我們需要安全保障，真正的安全保障，不是只用一把便宜的鎖。
EN:After the break-in, I just don't feel a sense of security at home anymore.
翻譯:遭竊之後，我在家就是感覺不到安全感了。
停頓填充
在思考或組織句子時，有時會用 "security" 作為一個話題的起頭或填充詞，尤其是在討論計畫或擔憂時。 EN: So, security-wise, I think we should install cameras first. 翻譯: 所以，就安全方面來說，我認為我們應該先安裝攝影機。
EN:The main concern is, you know, security... making sure everyone's data is protected.
翻譯:主要的顧慮是，你知道的，安全性...要確保每個人的資料都受到保護。
正式寫作注意：在正式或學術寫作中，應避免將 "security" 用作填充詞或過於口語化的強調。請使用更精確的術語（如 "national security"、"data protection"、"safety measures"）並保持句子結構完整，以符合文體的嚴謹性。
常見短語
What common collocations use "Security"?What fixed phrases with "Security" should I remember?
national security
noun + noun
國家安全
security guard
noun + noun
保全人員，警衛
tight security
adjective + noun
嚴密的安全措施
social security
adjective + noun
社會保障，社會福利
security clearance
noun + noun
安全許可，安全查核
a false sense of security
a + adjective + sense of + noun
虛假的安全感
cybersecurity
noun + noun (compound)
網路安全，資安
security deposit
noun + noun
押金，保證金
常見錯誤
What are common mistakes with "Security"?Which "Security" sentences look correct but are wrong?
×We need to improve our securities.
✓We need to improve our security.
When referring to the general state of being safe or protected, 'security' is uncountable. 'Securities' refers specifically to financial instruments like stocks and bonds.
×The security of the children is our priority.
✓The safety of the children is our priority.
'Security' often refers to protection from deliberate threats (crime, terrorism). 'Safety' refers to protection from accidents or general harm. For children's well-being against accidents or illness, 'safety' is more appropriate.
×I feel security in my home.
✓I feel secure in my home.
The noun 'security' is not typically used with 'feel'. Use the adjective 'secure' to describe the feeling. Alternatively, you can say 'I have a sense of security in my home.'
×He is looking for job security.
✓He is looking for job security.
This is correct as is, but learners often incorrectly add an article ('a job security') or make it plural ('job securities'). 'Job security' is an uncountable compound noun and does not take an article when used generally.
×It's a security national issue.
✓It's a national security issue.
In English, the general rule for adjective order is opinion, size, age, shape, color, origin, material, purpose. 'National' is an origin/type adjective and comes before the purpose noun 'security', which then modifies the main noun 'issue'.
詞形變化
What are the word forms of "Security"?What are tense/participle forms of "Security"?