Medium

Medium might mean:

 Medium, a size between small and large
 Medium (spirituality), a person who claims to communicate with the dead
 Interstellar medium, the matter between stars
 Optical gain medium
 Storage medium, a device for storing information
 Transmission medium, a solid, liquid, gas, or plasma that can transmit energy
 Growth medium, a solid or liquid material in which an organism can grow.

Entertainment
Medium (TV series), a television series that starred Patricia Arquette
The Medium, a 1946 opera by Gian Carlo Menotti

Related pages
Media, the way information is sent or received