topee vs sun helmet

topee and sun helmet both are nouns.

Word	Noun	Adjective	Verb	Adverb
topee	Yes	No	No	No
sun helmet	Yes	No	No	No

As nouns, topee and sun helmet are synonyms defined as:

topee and sun helmet: a lightweight hat worn in tropical countries for protection from the sun

Other synonyms of topee include pith hat, pith helmet, topi.

topee (noun)	sun helmet (noun)
a lightweight hat worn in tropical countries for protection from the sun	a lightweight hat worn in tropical countries for protection from the sun