Synonyms for Etiquette:

n.

conscience, ethics, protocol, study at decorum, Standards, morals, behavior, law, the proprieties, social graces, rule, code. mores, usual, good form. amenity (noun)
agreeableness, politeness.
behavior (noun)
ritual, observance, morals, ethics.
code (noun)
custom.
conformity (noun)
accordance, observance, manner, propriety, conformity, acquiescence, adherence, regularity, compliance, tradition, congruity, correctness, convention, formality, conformance, submissiveness, submission, ritual, obedience, consistency, custom.
convention (noun)
law, rule, formality.
courtesy (noun)
considerateness, courtesy, graciousness, respectfulness, politeness, gracefulness, agreeableness, decorum, Mannerliness, thoughtfulness, hospitality, civility.
custom (noun)
manner.
decency (noun)
correctness, good form.
etiquette (noun)
convention, decorum, courtesy, protocol, civility, mores, code, social graces, propriety.
good manners (noun)
social graces, respectfulness, propriety, graciousness.

Other synonyms:

mores, good form, conscience, behavior. protocol. law. code, rule. Other relevant words:
code, mores, conscience, good form, social graces, rule, protocol, behavior.

Usage examples for etiquette

  1. After he had flattered and questioned me sufficiently about the journey to comply with etiquette I asked him whether Ahmed might not be untied. – Jimgrim and Allah's Peace by Talbot Mundy
  2. Limited as his powers were by law, etiquette and Bismarck, he is said to have used them on behalf of Austria and England. – The Development of the European Nations, 1870-1914 (5th ed.) by John Holland Rose
  3. The duke was silent, so was is duchess; and Scandal herself sat meekly with closed lips in the presence of this stately and august couple, whose bearing toward each other in society was a lesson of complete etiquette to the world. – Vendetta A Story of One Forgotten by Marie Corelli