sugar loaf vs sugarloaf

sugar loaf and sugarloaf both are nouns.

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

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

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

Other synonyms of sugar loaf include loaf sugar.

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