Here are some examples of how "demi" is used in English:
* Demi-god: A being who is partly divine and partly human.
* Demi-tasse: A small cup of coffee.
* Demi-monde: A group of people who are considered to be on the fringes of society.
* Demi-season: A period of time between seasons, such as spring and summer.
* Demi-permanent hair dye: A type of hair dye that lasts for a shorter amount of time than permanent dye.
In addition to its literal meaning of "half," "demi" can also be used to convey a sense of incompleteness or partialness. For example, you might say that someone has a "demi-smile" if they are only smiling slightly.