Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
tcp/ip is a noun meaning "a set of protocols (including TCP) developed for the internet in the 1970s to get data from one network device to another". It carries one recorded sense.
a set of protocols (including TCP) developed for the internet in the 1970s to get data from one network device to another
Definitions, synonyms and semantic relations for tcp/ip come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.