bourgeois
Meaning: a middle-class person, capitalist
Usage: Many businessmen receive criticism for their bourgeois approach to life.
convention
Meaning: an assembly of people 2. a rule, custom
Usage: The cattle-ranchers have a convention that you take off your boots before entering their houses.
mores
Meaning: the moral attitudes and fixed customs of a group of people.
Usage: Mores change over time; many things that were tolerated in 1975 are no longer seen as being socially acceptable.
cosmopolitan
Meaning: sophisticated, worldly
Usage: Lloyd’s education and upbringing were cosmopolitan, so he felt right at home among the powerful and learned.