Ambit (noun)

1. The extent or range of a person's abilities or interests.
2. The scope or range of something, especially a law or political power.
3. The circumference or perimeter of a circular area.

Origin:

Late middle english: from latin ambitus "going around", from ambire "go around".

Examples:

1. Her ambit as a singer was limited to classical music.
2. The ambit of the law did not cover the area where the crime was committed.
3. The ambit of the city was vast, covering several hundred square miles.
4. His ambit as a writer was quite broad, including poetry, fiction and non-fiction.
5. The ambit of the park was surrounded by a fence, creating a boundary for visitors.