sauceboat vs gravy boat

sauceboat and gravy boat both are nouns.

Word	Noun	Adjective	Verb	Adverb
sauceboat	Yes	No	No	No
gravy boat	Yes	No	No	No

As nouns, sauceboat and gravy boat are synonyms defined as:

sauceboat and gravy boat: a dish (often boat-shaped) for serving gravy or sauce

Other synonyms of sauceboat include boat, gravy holder.

sauceboat (noun)	gravy boat (noun)
a dish (often boat-shaped) for serving gravy or sauce	a dish (often boat-shaped) for serving gravy or sauce