Definition of Internet service provider
: a company that provides its customers with access to the Internet and that may also provide other Internet-related services (such as email accounts)
—abbreviation ISP
— called also access provider
Buying Guide
Our Reviews team has selected the best tablets.
Test Your Vocabulary
Commonly Confused Words Quiz
-
- I went to the ______ store to buy a birthday card.

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share Internet service provider
Time Traveler for Internet service provider
The first known use of Internet service provider was in 1990
See more words from the same year