sugarloaf vs sugar loaf

sugarloaf and sugar loaf both are nouns.

Word	Noun	Adjective	Verb	Adverb
sugarloaf	Yes	No	No	No
sugar loaf	Yes	No	No	No

As nouns, sugarloaf and sugar loaf are synonyms defined as:

sugarloaf and sugar loaf: a large conical loaf of concentrated refined sugar

Other synonyms of sugarloaf include loaf sugar.

sugarloaf (noun)	sugar loaf (noun)
a large conical loaf of concentrated refined sugar	a large conical loaf of concentrated refined sugar