Panama hat vs skimmer

Panama hat and skimmer both are nouns.

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

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

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

Panama hat (noun)	skimmer (noun)
a stiff hat made of straw with a flat crown	gull-like seabird that flies along the surface of the water with an elongated lower mandible immersed to skim out food
	a stiff hat made of straw with a flat crown
	a cooking utensil used to skim fat from the surface of liquids
	a rapid superficial reader