n. 25B6; noun PROTOCOL, manners, accepted behaviour, rules of conduct, decorum, good form; courtesy, propriety, formalities, niceties, punctilios; custom, convention; informal the done thing; formal politesse.
ETIQUETTE
Meaning of ETIQUETTE in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012