fluegelhorn vs flugelhorn

fluegelhorn and flugelhorn both are nouns.

Word	Noun	Adjective	Verb	Adverb
fluegelhorn	Yes	No	No	No
flugelhorn	Yes	No	No	No

As nouns, fluegelhorn and flugelhorn are synonyms defined as:

fluegelhorn and flugelhorn: a brass instrument resembling a cornet but with a wider bore

fluegelhorn (noun)	flugelhorn (noun)
a brass instrument resembling a cornet but with a wider bore	a brass instrument resembling a cornet but with a wider bore