Definition of "Stern" :
noun: the rear part of a ship
noun: the fleshy part of the human body that you sit on
noun: United States concert violinist (born in Russia in 1920)
adjective: severe and unremitting in making demands
"A stern disciplinarian."
adjective: of a stern or strict bearing or demeanor; forbidding in aspect
"A stern face."
adjective: not to be placated or appeased or moved by entreaty
"The stern demands of parenthood."
adjective: severely simple