Meaning : A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography).
It was a mountainous area.
Synonyms : country
Meaning : A subject of study.
It was his area of specialization.
Areas of interest include....
Meaning : A part of an animal that has a special function or is supplied by a given artery or nerve.
In the abdominal region.
Synonyms : region
Meaning : A part of a structure having some specific characteristic or function.
The spacious cooking area provided plenty of room for servants.