Definition

a firewall: a program that stops people accessing a computer without permission while it is connected to the Internet noun
  • "- Never deactivate the firewall we have installed for you, even if it prevents you from accessing certain websites (which are, as it happens, not appropriate for the workplace)."
  • "I'm installing a firewall."
  • "They feature faster peer-to-peer networking, and built-in firewall."

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