hayfield vs meadow

hayfield and meadow both are nouns.

Word	Noun	Adjective	Verb	Adverb
hayfield	Yes	No	No	No
meadow	Yes	No	No	No

As nouns, hayfield and meadow are synonyms defined as:

hayfield and meadow: a piece of land covered or mostly covered with grass; a field where grass or alfalfa are grown to be made into hay

hayfield (noun)	meadow (noun)
a piece of land covered or mostly covered with grass; a field where grass or alfalfa are grown to be made into hay	a piece of land covered or mostly covered with grass; a field where grass or alfalfa are grown to be made into hay