1. An established standard, model, or pattern that serves as a basis for comparison or evaluation
It is the norm to shake hands when meeting someone in business.
É a norma apertar as mãos ao conhecer alguém nos negócios.
2. A rule or regulation that must be followed
The company has strict norms regarding workplace conduct.
A empresa tem normas rigorosas sobre a conduta no local de trabalho.
3. A standard of behavior expected within a group or society
Social norms vary greatly between different cultures.
As normas sociais variam muito entre diferentes culturas.