1.NounSomebody who is forced to stand up, for example, on a crowded bus.
2.NounA free-standing, rigid print, usually of a person or character (often life-sized), meant as a representation of a 3d object, commonly displayed for advertising and promotional purposes.
"He took a picture of me with a standee of Darth Vader at the premiere of Star Wars: Episode III."
3.NounA board game piece made of upright cardboard inserted into a plastic base.