予防
Prevention or protection against something bad happening, such as an illness, accident, or disaster. It describes taking proactive measures in advance to ensure safety and health.
Examples
3 of 5風邪の予防に、毎日手を洗います。
I wash my hands every day to prevent catching a cold.
感染症の予防に関するガイドラインを配布します。
We will distribute guidelines regarding the prevention of infectious diseases.
虫歯の予防、ちゃんとやってる？
Are you taking proper care to prevent cavities?
Word Family
Memory Tip
Think of 'Yo' (in advance) and 'Bo' (defend). You are defending yourself in advance like a shield.
Quick Quiz
病気を＿＿するために、ビタミンを摂ります。
Correct!
The correct answer is: 予防
Examples
風邪の予防に、毎日手を洗います。
everydayI wash my hands every day to prevent catching a cold.
感染症の予防に関するガイドラインを配布します。
formalWe will distribute guidelines regarding the prevention of infectious diseases.
虫歯の予防、ちゃんとやってる？
informalAre you taking proper care to prevent cavities?
犯罪を予防するためには、地域の協力が不可欠である。
academicIn order to prevent crime, regional cooperation is essential.
情報漏洩を予防するために、新しいパスワードを設定してください。
businessPlease set a new password to prevent data leaks.
Word Family
Common Collocations
Common Phrases
予防は治療に勝る
Prevention is better than cure.
予防線を張る
To take precautions; to prepare for possible criticism.
予防注射を受ける
To get a preventive injection (vaccination).
Often Confused With
Yobo (予防) is typically used for biological or natural threats like diseases, while Boshi (防止) is used for stopping incidents or social problems like accidents.
Usage Notes
予防 is almost always used for negative events like illnesses, accidents, or disasters. It is commonly used as a 'suru' verb (予防する) to mean 'to prevent'.
Common Mistakes
Learners sometimes use it for positive things, but you should only use it when you want to stop something bad from happening. Don't confuse it with 'Yosho' (予習 - preparation for lessons).
Memory Tip
Think of 'Yo' (in advance) and 'Bo' (defend). You are defending yourself in advance like a shield.
Word Origin
From the Kanji 予 (in advance) and 防 (defend/ward off).
Grammar Patterns
Cultural Context
In Japan, 'yobo' (prevention) is a part of social etiquette; many people wear masks during flu season as a preventive measure for themselves and others.
Quick Quiz
病気を＿＿するために、ビタミンを摂ります。
Correct!
The correct answer is: 予防
Related Vocabulary
Related Words
協力
A1Cooperation or collaboration where two or more people combine their efforts to achieve a common goal. It is used in both personal and professional settings to describe working together as a team or providing assistance.
提案
A1A suggestion or proposal of a plan or idea for others to consider. It is used in both casual conversations and professional meetings to introduce a potential course of action.
輸出
A1The act of sending goods or services produced in one country to another country for sale or trade. In Japanese, it functions as a noun and a suru-verb, representing the 'exit' of products from a domestic market.
輸入
A1The act of bringing goods, services, or materials into a country from abroad for sale or use. In Japanese, it functions as a noun or can be combined with 'suru' to become a verb meaning 'to import'.
資源
A1Shigen refers to valuable materials or assets, such as natural minerals, energy sources, or human talent, that can be used for production or survival. It is widely used in economics, environmental science, and daily life to describe both raw materials and abstract wealth.
保護
A1The act of keeping someone or something safe from harm, damage, or loss by providing care or creating boundaries. It is a versatile term in Japanese used for social welfare, environmental conservation, and digital security.
観察
A1Observation is the act of watching someone or something carefully in order to gain information or understand a process. It is frequently used in scientific studies, nature analysis, and describing the act of paying close attention to details.
競争
A1Kyousou refers to the act of competing or vying with others to achieve a goal, win a prize, or establish superiority. It is a versatile term used in sports, business, and academics to describe both structured contests and general rivalry.
拡大
A1The act of making something larger in size, scale, or scope. It is frequently used for physical enlargement (like a photo) or abstract growth (like a business or a problem).
製造
A1The process of making or producing goods, typically on a large scale using machinery. It refers specifically to industrial manufacturing rather than making things by hand on a small scale.
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