Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “protocol”

protocol

noun [U] (RULES)    /ˈprəʊ.tə.kɒl/ US  /ˈproʊ.t̬ə.kɑːl/
the system of rules and acceptable behaviour used at official ceremonies and occasions : a breach of Royal protocol diplomatic protocolCeremoniesRules and laws
(Definition of protocol noun (RULES) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of protocol

Browse related topics

You are looking at an entry to do with Rules & laws, but you might be interested in these topics from the Law and the police topic area:

Definitions of “protocol” in other dictionaries

Word of the Day

as husband and wife

in the same way as two people who are married

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More