He asked her to pledge the house as security for a loan.

他要她抵押房子作为贷款担保。

《柯林斯英汉双解大词典》

His home and business are being held as security for the loan.

他是以房子和店铺为抵押得到这笔贷款的。

《牛津词典》

The real purpose of this new property loan policy is to boost credit support for building an a ordable housing system for social security purposes.

新的房地产贷款政策目的在于为建立社会住房保障体系提供信贷支持，从而促进社会的稳定。

youdao

The item itself acts as the security or collateral for the loan.

VOA: special.2011.04.18

Because over the course of a year, there is a danger that the bank that you've borrowed from - and is holding your assets as security for the loan - could go bust.

BBC: Where to find bank stress

Much of the borrowing by athletes has been accomplished through Loan and Security Agreements with a select few private lenders.

FORBES: Connect

The IMF should be urged to embark on a study, much like that conducted in January 2008, of loan conditions focused on security-related risk considerations.

CENTERFORSECURITYPOLICY: Doing business with Iran