can vs keister

can and keister both are nouns.

Word	Noun	Adjective	Verb	Adverb
can	Yes	No	Yes	No
keister	Yes	No	No	No

As nouns, can and keister are synonyms defined as:

can (noun)	keister (noun)
airtight sealed metal container for food or drink or paint etc.	the fleshy part of the human body that you sit on
a room or building equipped with one or more toilets
a plumbing fixture for defecation and urination
the fleshy part of the human body that you sit on
a buoy with a round bottom and conical top
the quantity contained in a can

can (verb)	keister (verb)
preserve in a can or tin
terminate the employment of; discharge from an office or position