landing field vs airfield

landing field and airfield both are nouns.

Word	Noun	Adjective	Verb	Adverb
landing field	Yes	No	No	No
airfield	Yes	No	No	No

As nouns, landing field and airfield are synonyms defined as:

Other synonyms of landing field include field, flying field.

landing field (noun)	airfield (noun)
a place where planes take off and land	a place where planes take off and land