Meaning of “area” - Learner’s Dictionary

area

noun uk us /ˈeəriə/
REGION [ C ]

A2 a region of a country or city:

an industrial area
a mountainous area
the London area
PART [ C ]

B1 a part of a building or piece of land used for a particular purpose:

a play/picnic area
SUBJECT [ C ]

B2 a part of a subject or activity:

Software is not really my area of expertise.

(Definition of “area” from the Cambridge Learner’s Dictionary © Cambridge University Press)