What does prefix "demi-" mean? Could you give me some examples?

Native speaker’s answer
Rebecca
"Demi-" as a prefix means partial or half-sized. It can also mean inferior. Maui is part human and part god, which also makes him inferior to the gods. Ex: My hair color is demi-permanent. Ex: The shape of the building is demi-circular. Ex: He was a demi-billionaire by the time he was 20 years old. Ex: Fred was a demisoloist. He was hoping to be a soloist one day. => Rank below a soloist