dengue fever vs dandy fever

dengue fever and dandy fever both are nouns.

Word	Noun	Adjective	Verb	Adverb
dengue fever	Yes	No	No	No
dandy fever	Yes	No	No	No

As nouns, dengue fever and dandy fever are synonyms defined as:

dengue fever and dandy fever: an infectious disease of the tropics transmitted by mosquitoes and characterized by rash and aching head and joints

Other synonyms of dengue fever include breakbone fever, dengue.

dengue fever (noun)	dandy fever (noun)
an infectious disease of the tropics transmitted by mosquitoes and characterized by rash and aching head and joints	an infectious disease of the tropics transmitted by mosquitoes and characterized by rash and aching head and joints