flying field vs airport

flying field and airport both are nouns.

Word	Noun	Adjective	Verb	Adverb
flying field	Yes	No	No	No
airport	Yes	No	No	No

As nouns, airport is a hyponym of flying field; that is, airport is a word with a more specific, narrower meaning than flying field:

flying field: a place where planes take off and land
airport: an airfield equipped with control tower and hangars as well as accommodations for passengers and cargo

Other hyponyms of flying field include aerodrome, airdrome, drome, airstrip, flight strip, landing strip, strip, auxiliary airfield.

flying field (noun)	airport (noun)
a place where planes take off and land	an airfield equipped with control tower and hangars as well as accommodations for passengers and cargo