Freddie Mac
noun trademark uk/fred.i ˈmæk/ us/fred.i ˈmæk/
房地美（美国联邦住房抵押贷款公司）
an informal name for the Federal Home Loan Mortgage Corporation: a US government organization that buys and sells loans (= money that has been borrowed) on the financial markets in order to raise more money to lend to home buyers
Compare: Fannie Mae