1. internet service provider: a company that offers access to the internet and to email, usually for a monthly fee.

Origin of ISP

First recorded in 1990–95

Words Nearby ISP Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use ISP in a sentence

  • This can be done more efficiently by means of the alternating current, which is subject to far less loss than ISP.

    Electricity for Boys | J. S. Zerbe
  • For this purpose a standard solution of nitrate of silver ISP.

    Electricity for Boys | J. S. Zerbe

British Dictionary definitions for ISP


abbreviation for
  1. internet service provider, a business providing its customers with connection to the internet and other related services

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012