leghorn vs straw hat

leghorn and straw hat both are nouns.

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

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

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

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