n.

1. 保證，誓言[C][+to-v][+that]
   I gave him my pledge that I would vote for him.

   我向他保證我將投他的票。

2. 抵押，典當品[C]
   She left her watch as a pledge with the taxi-driver.

   她將手錶留給計程車司機作為抵押。

3. 質押，典當[U]
   He put bonds in pledge for a loan.

   他將債券作抵押以取得貸款。

4. （友情等的）信物，證明[C][（+of）]
   Take this ring as a pledge of friendship.

   將這隻戒指拿去作為友誼的信物吧。

5. 立誓加入祕密社團的人[C]
6. 祝願；祝酒[S]
   We drank a pledge to their success.

   我們舉杯祝願他們成功。

7. 戒酒誓願

vt.

1. 保證給予；許諾；發誓[O1][+to-v][+that]
   He pledged never to come back until he had found her.

   他發誓不找到她絕不回來。

2. 使保證；使發誓[（+to）][O2]
   I pledged myself to fulfil the promise I had made.

   我保證實踐自己的諾言。

3. 用……抵押，以……典押[（+for）]
   The property was pledged as security for loans.

   這地產被當作貸款的抵押。

4. 為……祝願；向……祝酒
   Everyone at the table stood up and pledged the success of the new company.

   桌上每個人都起立為新公司的成功祝酒。

n.

1. a solemn promise or undertaking.
   ▸a promise of a donation to charity.
   ▸ (the pledge) a solemn undertaking to abstain from alcohol.
2. Law  a thing that is given as security for the fulfilment of a contract or the payment of a debt and is liable to be forfeited in the event of failure.
   ▸a thing given as a token of love, favour, or loyalty.
3. archaic the drinking of a person's health; a toast.

v.

1. solemnly undertake to do or give something.
2. Law  give as security on a loan.
3. archaic drink to the health of.