Separation (noun)

1. The action or state of separating or being separated.
2. The division of something into parts or the creation of distance between them.
3. The fact or condition of no longer being joined or associated with someone or something.
4. The legal dissolution of a marriage or the termination of a business partnership.

Origin:

Late middle english: from latin separatio(n-), from separare 'to separate'.

Examples:

1. The separation of the two countries was marked by a large wall.
2. The separation of the egg whites from the yolks is an important step in making a meringue.
3. The separation from her husband was difficult, but she knew it was the right thing to do.
4. The company underwent a separation into two smaller companies.
5. The separation of church and state is a fundamental principle in many countries.