Guarantee
Assurance, Warranty
noun, verbal noun
Giving evidence (or a guarantee) that you will preserve something, is giving a guarantee, assurance, or warranty.
This word is used when the emphasis is on taking responsibility for something, as in a guarantor, a product warranty, or quality assurance.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
保証を受ける
to receive a guarantee
保証を行う
to implement a warranty
保証をする
to guarantee
動作保証
operation guarantee (of a product)
返金保証
money-back guarantee
メーカー保証
manufacturer's warranty
保証期間
warranty period
保証金
security deposit, guaranty money
保証人
guarantor
保証書を失くさないようにしてください。
Please keep the warranty certificate safe.
この商品には一年間の保証が付いています。
This product comes with a one-year warranty.
私はワニカニのライフタイムメンバーですが、トーフグが五年後もあるなんて保証はないから本当にライフタイムでワニカニが使えるなんて思っていませんよ。
I am a lifetime member of WaniKani, but I don't really think I can use it for life, as there is no guarantee that Tofugu will still be around in five years.