From Longman Dictionary of Contemporary EnglishISPISP /ˌaɪ es ˈpiː/ noun [countable] (Internet service provider) a business that provides a connection to the Internet for people’s computers
Examples from the Corpus
ISP• To dial an ISP, simply click on its entry in Dial-up Networking.• In other words, national ISPs extend high-speed connections to users just about anywhere, bypassing the existing telco infrastructure.• First, on-line services tend to be considerably slower for Web browsing than ISPs.• This ISP has one option that provides e-mail and full news-group access for $ 15 per month.• Your ISP is more likely to get tough with you over this than with excessive pinging.From Longman Business DictionaryISPISP abbreviation for INTERNET SERVICE PROVIDER 