A1 noun Neutral #2,861 most common

保証

hoshō /ho̞ɕo̞ː/

A guarantee or warranty provided to ensure the quality, performance, or truth of something. It is most commonly used for product warranties or official promises that a specific outcome will occur.

Examples

3 of 5
1

この時計には1年の保証がついています。

This watch comes with a one-year warranty.

2

弊社は製品の品質を保証いたします。

Our company guarantees the quality of our products.

3

彼の言うことは保証できない。

I can't guarantee what he says is true.

Word Family

Noun
保証
Verb
保証する
Related
保証金
💡

Memory Tip

The first kanji 保 means 'protect' and the second 証 means 'evidence'. Think of it as: 'Evidence that protects your purchase.'

Quick Quiz

このパソコンは、故障しても1年間は___があります。

Correct!

The correct answer is: 保証

Examples

1

この時計には1年の保証がついています。

everyday

This watch comes with a one-year warranty.

2

弊社は製品の品質を保証いたします。

business

Our company guarantees the quality of our products.

3

彼の言うことは保証できない。

informal

I can't guarantee what he says is true.

4

この実験結果の再現性は保証されている。

academic

The reproducibility of these experimental results is guaranteed.

5

署名をもって内容の正確さを保証する。

formal

I guarantee the accuracy of the content with my signature.

Word Family

Noun
保証
Verb
保証する
Related
保証金

Common Collocations

保証書 warranty card
保証期間 warranty period
品質保証 quality assurance
保証人 guarantor
修理を保証する to guarantee repairs

Common Phrases

保証の限りではない

not necessarily guaranteed

保証人になる

to act as a guarantor

100%保証する

to guarantee 100%

Often Confused With

保証 vs 保障

Used for security or protection of rights (e.g., social security), whereas '保証' is for quality or reliability.

保証 vs 補償

Used for monetary compensation or making up for damages.

📝

Usage Notes

Use this word when discussing product warranties or making a firm promise that something is true or will work. It is very common in shopping and business contracts.

⚠️

Common Mistakes

Learners often confuse the three 'hoshō' homophones; remember that '保証' contains the kanji for 'proof' (証).

💡

Memory Tip

The first kanji 保 means 'protect' and the second 証 means 'evidence'. Think of it as: 'Evidence that protects your purchase.'

📖

Word Origin

Derived from Middle Chinese roots where 'bao' (protect/keep) and 'zheng' (witness/proof) were combined to mean providing security for a claim.

Grammar Patterns

〜を保証する (to guarantee something) 〜の保証 (the guarantee of...) 保証が付く (to come with a guarantee)
🌍

Cultural Context

In Japan, a 'Hoshōnin' (guarantor) is a very serious role required for renting apartments or taking bank loans, implying shared financial responsibility.

Quick Quiz

このパソコンは、故障しても1年間は___があります。

Correct!

The correct answer is: 保証

Related Words

台風

A1

A large, powerful tropical cyclone that occurs in the Northwest Pacific Ocean, bringing heavy rain and strong winds. In Japan, they occur most frequently between July and October and are identified by numbers rather than names in daily news reporting.

竜巻

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A violent, rotating column of air extending from a thunderstorm to the ground, often visible as a funnel-shaped cloud. In Japanese, the name literally means 'rolling dragon,' describing its swirling appearance as it ascends to the sky.

洪水

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A flood refers to an overflow of a large amount of water beyond its normal limits, especially over what is normally dry land. It is commonly used to describe natural disasters caused by heavy rain or overflowing rivers.

干ばつ

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A prolonged period of abnormally low rainfall leading to a shortage of water. It is used to describe the environmental state and its resulting impact on agriculture and water supply.

疫病

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An infectious disease or epidemic that spreads widely and rapidly among a population. It often refers to large-scale outbreaks and carries a historical or serious clinical nuance.

伝染

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The process of a disease or feeling spreading from one person to another through contact or influence. It can refer to biological infections or the metaphorical spread of emotions like laughter or panic.

感染

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Infection refers to the process where viruses or bacteria enter the body and multiply. It is also used metaphorically for the spread of emotions, computer viruses, or habits.

免疫

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Immunity refers to the body's ability to resist a particular infection or toxin via specific antibodies or sensitized white blood cells. It can also be used metaphorically to describe a state of being unaffected by something unpleasant because of previous exposure.

抗体

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An antibody is a protective protein produced by your immune system to fight off harmful substances like viruses or bacteria. It acts like a specialized soldier that remembers specific germs to prevent you from getting sick from the same thing twice.

細菌

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Microscopic single-celled organisms that can be found everywhere, including inside the human body. While some cause diseases, many are beneficial for health and the environment.

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