Etiquette
Etiquette (pronounced [,eti'ket]) is a code of behavior that delineates expectations for social behavior according to contemporary conventional norms within a society, social class, or group. The French word étiquette, signifying ticket (of admission, etc.) first appeared in English in 1750.
Business
A business (also called a company, enterprise or firm) is a legally recognized organization designed to provide goods and/or services to consumers. Businesses are predominant in capitalist economies. Most businesses are privately owned. A business is typically formed to earn profit that will increase the wealth of its owners and grow the business itself. The owners and operators of a business have as one of their main objectives the receipt or generation of a financial return in exchange for work and acceptance of risk. Notable exceptions include cooperative enterprises and state-owned enterprises. Businesses can also be formed not-for-profit or be state-owned.
Relationship
Relationship is an association between two or more people that may range from fleeting to enduring. This association may be based on limerence, love and liking, regular business interactions, or some other type of social commitment. Interpersonal relationships take place in a great variety of contexts, such as family, friends, marriage, associates, work, clubs, neighborhoods, and churches. They may be regulated by law, custom, or mutual agreement, and are the basis of social groups and society as a whole. Although humans are fundamentally social creatures, interpersonal relationships are not always healthy. Examples of unhealthy relationships include abusive relationships and codependence.