guarantee

保証、確約

何かが必ず起こる、または行われるという固い約束。

やさしい英語で： A firm promise that something will happen or be done.

• We need a written guarantee.
• They gave a guarantee that the goods would arrive on time.
• The agreement includes guarantees of fair treatment.

使い方： guarantee that… (We need a guarantee that the work will be finished.); guarantee of something (They asked for a guarantee of payment.)

類義語： assurance, promise, pledge

よく使う表現： give a guarantee, written guarantee, guarantee of something

保証

製品が正常に動かなければ、修理や交換、返金をするという約束。

やさしい英語で： A promise to repair or replace a product, or return your money, if it does not work properly.

• The fridge is still under guarantee.
• Your purchase comes with a two-year guarantee.
• They replaced the phone because its guarantee had not expired.

使い方： guarantee on something (The shop offers a guarantee on all its washing machines.)

類義語： warranty

よく使う表現： under guarantee, two-year guarantee, guarantee on something, product guarantee

保証

ある結果が確実に実現するようにするもの。

やさしい英語で： Something that makes a particular result certain.

• Money is no guarantee of happiness.
• A degree is not a guarantee of a good job.
• Her careful preparation was our best guarantee of success.

使い方： guarantee of something (A high price is no guarantee of quality.)

類義語： assurance

よく使う表現： guarantee of success, no guarantee, guarantee of something

保証する、確約する

何かが必ず起こる、または行われると固く約束する。

やさしい英語で： To promise firmly that something will happen or be done.

• I guarantee you will enjoy it.
• The company guarantees delivery within three days.
• The law guarantees everyone the right to a fair trial.

使い方： guarantee that… (I guarantee that your money will be returned.); guarantee someone something (The agreement guarantees workers a fair wage.)

類義語： promise, assure, pledge

よく使う表現： guarantee that something, guarantee someone something, guarantee delivery

確実にする、保証する

何かが必ず起こるように、または一定の結果になるようにする。

やさしい英語で： To make sure that something will happen or have a particular result.

• These conditions guarantee a good crop.
• A strong team does not always guarantee victory.
• Careful planning helped guarantee the project’s success.

類義語： ensure, assure, secure

よく使う表現： guarantee success, guarantee a result, guarantee something

保証する

製品が故障したら、修理や交換、返金をすると約束する。

やさしい英語で： To promise to repair or replace a product, or return the money, if it develops a fault.

• We guarantee all our products.
• The manufacturer guarantees the battery for two years.
• These boots are guaranteed against faults in the materials.

使い方： guarantee something against something (We guarantee this product against manufacturing defects.); guarantee something for a period (The company guarantees the motor for five years.)

類義語： warrant

よく使う表現： guarantee a product, guarantee against defects