Closer examination revealed that the skull had been crushed by some heavy blow. ✬

The human skull consists of 23 bones. ✬

Tom was bored out of his skull. ✬

Are you out of your skull? ✬

That's a skull. ✬

Tom's skull has been fractured. ✬

Tom has a tattoo of a skull on his chest. ✬

Our dog dug up a skull. ✬