Dichotomy (noun)

1. A division or contrast between two things that are or are represented as being opposed or entirely different.
2. The difference or opposition between two things or sets of things.

Origin:

Derived from the greek word 'dichotomia' meaning 'division into two parts'.

Examples:

1. The dichotomy between science and religion has been a long-standing issue.
2. The dichotomy between good and evil is a common theme in literature and philosophy.
3. The dichotomy between work and leisure is a significant aspect of modern life.
4. The dichotomy between city and country life is a topic of interest to sociologists.
5. The dichotomy between nature and culture is a central concern in environmental philosophy.