Phoresy is a term that refers to a type of symbiosis where one organism (the phoretic) uses another organism (the host) as a means of transportation. While this term has specific connotations when used in the context of biological symbiosis, there are many synonyms that can be used more generally to describe the concept of one thing hitching a ride on another. Some potential options include piggybacking, riding, clinging, clinging, boarding, and attaching. Each of these synonyms can be used to describe situations where one entity benefits from the presence of another, whether that be in the context of transportation or in other types of symbiotic relationships.