Panama hat vs straw hat

Panama hat and straw hat both are nouns.

Word	Noun	Adjective	Verb	Adverb
Panama hat	Yes	No	No	No
straw hat	Yes	No	No	No

As nouns, Panama hat and straw hat are synonyms defined as:

Other synonyms of Panama hat include boater, leghorn, Panama, sailor, skimmer.

Panama hat (noun)	straw hat (noun)
a stiff hat made of straw with a flat crown	a stiff hat made of straw with a flat crown