n.
保證，擔保 [C]
例句：
A famous old name on a firm is not necessarily a guarantee of quality.
公司悠久的品牌並不能確保商品的質量。
例句：
The Editor can give no guarantee that they will fulfil their obligations.
《編輯家》無法保證他們會履行職責。
保證人；保證書；擔保金，擔保物，抵押品 [C]
例句：
Males between 18 and 20 had to leave a deposit as a guarantee of returning to do their military service.
18至20歲的男性必須繳納壹筆保證金，作為回來服兵役的擔保。
例句：
The guard guards the guarantee in the garden regardless of the hazard.
衛兵不顧危險看守著花園裏的抵押品。
保修單 [C]
例句：
The new television had a guarantee with it.
這臺新電視機有保修單。
例句：
Whatever a guarantee says, when something goes wrong, you can still claim your rights from the shop.
不論保修單如何規定，若商品出了問題，消費者仍然可以去商店維護自身權益。
v.
保證，確保 [T]
例句：
Buying a train ticket doesn't guarantee you a seat.
買壹張火車票並不壹定擔保妳有座位。
例句：
Surplus resources alone do not guarantee growth.
僅有富余的資源並不能確保發展。
例句：
I guarantee that you'll enjoy yourself.
我保證妳玩得痛快。
例句：
Some builders guarantee their work.
壹些建築公司對其承建工程提供質量擔保。
例句：
We [guarantee] the fastness of these dyes.
我們擔保這些染料不褪色。
擔保 [T]
例句：
All Dreamland's electric blankets are guaranteed for three years.
所有的夢鄉牌電熱毯質保3年。
例句：
Some builders guarantee their work.
壹些建築公司對其承建工程提供質量擔保。
二、詞義辨析：
ensure,insure,assure,guarantee,pledge,promise
這些動詞都有“保證”之意。
ensure側重使人相信某個行為或力量產生的結果。
insure常與ensure換用，但前者多指經濟方面的保證、保險。
assure側重指消除某人思想上的懷疑或擔心，從而有達到目的的保證感，但不如ensure普通。
guarantee指對事物的品質或人的行為及履行義務、義務等承擔責任的保證。
pledge正式用詞，指通過鄭重許諾、協議或立誓等保證承擔某壹義務或遵守某壹原則。
promise側重表自己的主觀意向，設法用語言使人感到穩當可靠。
三、參考例句：
Some builders guarantee their work.
壹些建築公司對其承建工程提供質量擔保。
It has a three-year guarantee.
這個產品可以保修三年。
Surplus resources alone do not?guarantee?growth.
僅有富余的資源並不能確保發展。
I guarantee that you'll enjoy yourself.
我保證妳玩得痛快。
We guarantee prompt delivery of goods.
我們保證及時交貨。
A diploma is no guarantee of efficiency.
持有文憑不能保證工作效率壹定高。
We guarantee the fastness of these dyes.
我們擔保這些染料不褪色。
Surplus resources alone do not guarantee growth.
僅有富余的資源並不能確保發展。
I can guarantee you no extra charge.
我可以保證決不加收費用。
The ticket will guarantee your free entry.
這張票可確保妳免費入場。