as safe as houses
US /æz seɪf æz ˈhaʊzɪz/
UK /æz seɪf æz ˈhaʊzɪz/

1.
sangat aman, seaman rumah
very safe and secure
:
•
Don't worry about your investments, they're as safe as houses.
Jangan khawatir tentang investasi Anda, itu sangat aman.
•
The new security system makes the building as safe as houses.
Sistem keamanan baru membuat bangunan itu sangat aman.