The word "tether" is often used to describe something that is anchored or tied down in some way. Some synonyms for tether may include: leash, lead, restraint, tie-down, chain, cable, fetter, cord, strap, and harness. These words can be used interchangeably to describe a situation where something is held in place or restricted in movement. Tether may also be used to describe a connection between two things, and in this context, synonyms could include link, connection, tie, bond, or attachment. These words all convey the idea of a relationship or connection that holds two things together in some way.