the bony skeleton of the head of vertebrates
"The surgeon carefully cleaned the exposed skull before beginning the delicate brain surgery."
The main bones of the head considered as a unit; including the cranium, facial bones, and mandible.
"In their old dialect, they spoke of a great skull gathering to celebrate the harvest."
Obsolete form of school (“a multitude”).
In plain English: A skull is the hard bone structure that protects your brain and makes up most of your head.
"The pilot wore an old leather skullcap to keep warm in the cold wind."
Usage: The noun skull refers to the entire bony structure protecting the brain, while the verb form means to strike someone forcefully on the head. Use this word when describing either anatomical anatomy or violent physical attacks involving blunt force trauma.
To hit in the head with a fist, a weapon, or a thrown object.
"The boxer accidentally skull his opponent during a wild punch."
In plain English: To skull means to hit your head hard against something solid, usually by falling over backward while riding a bike or doing tricks on skis.
"The thief managed to skull his way past the security guard without being noticed."
The word "skull" comes from Middle English forms likely derived from a dialect version of Old Norse skalli, which originally meant "bald head." This root is probably related to the Old English word for husk, suggesting an ancient connection between hard outer coverings and bone.