Synonyms of protocol in English:

protocol


See US English definition of protocol

See UK English definition of protocol

See Spanish definition of protocolo

noun

1‘he was always a stickler for protocol’

SYNONYMS
etiquette, conventions, formalities, customs, rules of conduct, procedure, ritual, code of behaviour, accepted behaviour, conventionalities, propriety, proprieties, one's Ps and Qs, decorum, manners, courtesies, civilities, good form, the done thing, the thing to do, punctilio
politesse

2‘the two countries signed a protocol on defence and security’

SYNONYMS
agreement, treaty, entente, concord, concordat, convention, deal, pact, contract, compact, settlement, arrangement
armistice, truce
rare engagement