什麼叫做 Callable ? 中文解釋又是什麼 ?

callable
(a.)
1. 可召喚的
2. 可先期償還的
3. 要求即付的(如貸款等)


*callable bond
(ph.)
0.可贖回債券 (全部或部分可被發行公司在限定的條件下, 在到期前買回的一種債券發行)

Where is it used ?

There is an example, callable bond:

A bond that can be redeemed by the issuer prior to its maturity. Usually a premium is paid to the bond owner when the bond is called. Also known as a "redeemable bond".