etiquette

US /ˈet̬.ɪ.kɪt/
UK /ˈet̬.ɪ.kɪt/
"etiquette" picture
1.

the customary code of polite behavior in society or among members of a particular profession or group.

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Business etiquette is important for professional success.
•
She always observes proper dining etiquette.
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protocolmannersdecorumproprietycourtesy