can

nouns

airtight sealed metal container for food or drink or paint etc.
the quantity contained in a can
a buoy with a round bottom and conical top
the fleshy part of the human body that you sit on
"he deserves a good kick in the butt"; "are you going to sit on your fanny and do nothing?"
a plumbing fixture for defecation and urination
a room or building equipped with one or more toilets

verbs

preserve in a can or tin
"tinned foods are not very tasty"
is derived from
terminate the employment of; discharge from an office or position
"The boss fired his secretary today"; "The company terminated 25% of its workers"