Words similar to firewall

Example sentences for: firewall

How can you use “firewall” in a sentence? Here are some example sentences to help you improve your vocabulary:

As Mayer quoted a source as saying: "She's the perfect firewall ...
To ensure that this happens, PLoS has a firewall in place such that neither the editors nor the reviewers know which authors have indicated whether or not they can pay.
UPS, which alleges that USPS uses its first-class mail monopoly profits to subsidize competitive services, has asked that the firewall between the Postal Service's monopoly and competitive services be strengthened.
Book -- Firewall: The Iran-Contra Conspiracy and Cover-Up , by Lawrence E. Walsh;