parking lot vs parking area

parking lot and parking area both are nouns.

Word	Noun	Adjective	Verb	Adverb
parking lot	Yes	No	No	No
parking area	Yes	No	No	No

As nouns, parking lot and parking area are synonyms defined as:

Other synonyms of parking lot include car park, park.

parking lot (noun)	parking area (noun)
a lot where cars are parked	a lot where cars are parked