kettleful vs kettle

kettleful and kettle both are nouns.

Word	Noun	Adjective	Verb	Adverb
kettleful	Yes	No	No	No
kettle	Yes	No	No	No

As nouns, kettleful and kettle are synonyms defined as:

kettleful (noun)	kettle (noun)
the quantity a kettle will hold	a metal pot for stewing or boiling; usually has a lid
	a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it
	(geology) a hollow (typically filled by a lake) that results from the melting of a mass of ice trapped in glacial deposits
	the quantity a kettle will hold