1. Anything which is normal or typical for a thing of that type, or a particular person. English = feature, characteristic.
2. An important, defining, significant part of something (i.e., a text, creative work, procedure, category of thing). English = feature, aspect.
3. The characteristic or typical behaviour patterns of a person. English = mannerism.
4. The characteristic or typical behaviour patterns of a society or culture. English = custom, tradition.