* The economic projection for next year is optimistic. (Here, "projection" refers to a forecast or prediction.)
* The film's projection onto the giant screen was spectacular. (Here, "projection" refers to the act of displaying an image.)
* The therapist helped her understand her own projections onto others. (Here, "projections" refers to attributing one's own thoughts or feelings to someone else.)
* The architect's projection of the building showed its impressive scale. (Here, "projection" refers to a three-dimensional representation of something.)
* The team's projection for the upcoming season is a championship win. (Here, "projection" refers to an anticipated outcome.)
As you can see, "projection" can have various meanings depending on the context.