Conexión
Connection is an ability within the Cosmere that allows a closer relationship between two parties.
Feruchemy
In Feruchemy, Connection is stored in Duralumin. As far as we know, it cannot be accessed by Allomancy or Hemalurgy.
The Nature of Connection
Connection uses spirit webs, and connects them in the spiritual realm.
Intent of Use
Connection can allow communication between two parties that would otherwise be difficult or impossible. Examples include people speaking a different language[1] or existing in different realms[2].
Medalions
Connection can be accessed by wearing unsealed metalminds. These medalions are worn by a person who is in a land that is not their own, and they are then able to speak the language of the place they are in. A person wearing their medallion in their own land will still speak their own language, not the language of the person they are communicating with. Occasionally, words to not translate fully.