Inter-medium refers to something that exists between or combines two or more different mediums or elements. Synonyms for this word include intermediate, mediator, go-between, intermediary, middleman, and liaison. They all imply a role or position that works to bring different things together, or that represents a connection or link between two or more separate entities. Other possible words that could be used to describe this notion include hybrid, cross-disciplinary, inter-disciplinary, and multi-faceted. Ultimately, the word inter-medium is a versatile concept that praises the art of combining different forms or mediums to create a more comprehensive and engaging experience.