保証・保障|ほしょうhoshou[0]heiban (flat)

1. noun, suru verb, transitive verbguarantee; security; assurance; pledge
   彼女かのじょの誠実せいじつさは私が保証ほしょうします。↗

   You have my word on her sincerity.
2. noun, suru verb, transitive verbwarranty

• Synonym請け合ううけあうNeutralTo guarantee or vouch that something will happen, and also to take on a task; in conversation you might say 「請け合うよ」 to give your personal assurance.
• Synonym引き受けるひきうけるNeutralMainly about taking on or accepting a task, though it can also mean vouching for someone; 「保証」 stresses answering for quality or results.
• Synonym担保たんぽNeutralCollateral or security for a debt, used mostly in financial and legal contexts, as in 「担保に入れる」.
• Synonym保するほするWrittenA written-style verb meaning to guarantee, found mainly in formal prose; in speech people normally say 「保証する」.
• Synonym請け合いうけあいNeutralThe noun form: an assurance that something is certain; typically appears as 「〜は請け合いだ」 to state there is no doubt.
• Antonym剥奪はくだつWrittenStripping someone of rights or status; the counterpart of 「保障」 in its sense of safeguarding rights.

Use 「保証」 for guaranteeing quality, results, or a promise; 「請け合う」 when you personally vouch for something; 「担保」 for collateral. When written 「保障」 and meaning protecting rights, its opposite is 「剥奪」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 受じゅ（請うけ）け合あうこと。
2. 物ものの性能せいのう・品質ひんしつ又または人ひとの能力のうりょくについて、期待きたいしていた水準すいじゅんに達たっしなかった又または逆ぎゃくに損害そんがいを発生はっせいさせた場合ばあいに、期待きたいとの乖離かいりを補おぎなう又または損害そんがいを回復かいふくさせることを約束やくそくすること。担保たんぽ。
3. 債務者さいむしゃが債務さいむを履行りこうしない場合ばあいに、他たの者もの（保証人ほしょうにん）がその債務さいむを履行りこうする責任せきにんを負おうこと。