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Definition of firewall noun from the Oxford Advanced American Dictionary

 

firewall

 noun
noun
NAmE//ˈfaɪərˌwɔl//
 
(computing)
 
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a part of a computer system that is designed to prevent people from getting at information without authority but still allows them to receive information that is sent to them Topic CollocationsE-mail and the Internete-mail
  • receive/get/open an e-mail
  • write/send/answer/forward/delete an e-mail
  • check/read/access your e-mail
  • block/filter (out) junk/spam/unsolicited e-mails
  • exchange e-mail addresses
  • open/check your inbox
  • junk mail fills/floods/clogs your inbox
  • have/set up an e-mail account
  • open/send/contain an attachment
  • sign up for/receive e-mail alerts
connecting to the Internet
  • use/access/log onto the Internet/the Web
  • go online/on the Internet
  • have a high-speed/dial-up/broadband/wireless (Internet) connection
  • access/connect to/locate a server
  • use/open/close/launch a/your Web browser
  • browse/surf/search/scour the Internet/the Web
  • send/contain/spread/detect a (computer/e-mail) virus
  • update your anti-virus software
  • install/use/configure a firewall
  • accept/enable/block/delete cookies
using the Internet
  • visit/check a Web site/an Internet site/somebody's blog
  • create/design/launch a Web site/social networking site
  • start/write/post/read/follow a blog
  • update your blog/a Web site
  • be in/meet somebody in/go into/enter an Internet chat room
  • download/upload music/software/a song/a podcast/a file/a copy of something
  • share information/data/files
  • post a comment/message on a Web site/on a message board/in a Web forum/in an Internet chat room
  • stream video/audio/music/content over the Internet
  • join/participate in/visit/provide a (Web-based/web/online/Internet/discussion) forum
  • generate/increase/monitor Internet traffic
See firewall in the Oxford Advanced Learner's Dictionary