an agreement that allows you to borrow money from a bank or similar organization, especially in order to buy a house, or the amount of money itself

They took out a £400,000 mortgage (= they borrowed £400,000) to buy the house. 他们借了4万英镑的抵押贷款来买房子。

a monthly mortgage payment 每月偿付的抵押贷款

to borrow money to buy a house

Their home was mortgaged up to the hilt (= the full value of their home had been borrowed). 那所房子被完全抵押出去了。