: a set of communications protocols used for the exchange of information over networks and especially over the Internet

Word History


transmission-control protocol/Internet protocol

First Known Use

1980, in the meaning defined above

Time Traveler
The first known use of TCP/IP was in 1980

Dictionary Entries Near TCP/IP

Cite this Entry

“TCP/IP.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/TCP%2FIP. Accessed 28 Mar. 2023.

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