Any of a range of concepts regarding spirituality and religion which do not include the idea of a deity in the form of a theistic god or gods.
A theory or doctrine which supports a state of separation between organizations, institutions, or other societal groups (e.g. between church and state) or between different political jurisdictions (e.g. a country and its former colony).
The practice of treating members of different societal groups in a politically, legally, or economically different manner.