- Etiquette is defined as the formal manners and rules that are followed in social or professional settings.
The rules of writing a thank you note are an example of etiquette.
etiquette definition by Webster's New World
- the forms, manners, and ceremonies established by convention as acceptable or required in social relations, in a profession, or in official life
- the rules for such forms, manners, and ceremonies
Origin: French étiquette, literally , ticket
etiquette definition by American Heritage Dictionary
Origin: French, from Old French estiquet, label; see ticket.