As a Noun:
1. The avoidance of physical work. English = laziness.
2. The act of doing no physical or practical work and thinking deeply about something instead. English = reflection, thinking.
As a Verb or Adjective:
1. To do nothing, especially when other people are working and when you are expected to work also. English = (be) lazy, (be) idle.
2. To do nothing except think deeply about something. English = ponder, reflect.