Real Dictionary

link
any of the separate rings, loops, or pieces that connect or make up a chain [...]
the natural action or intended purpose of a person or thing in a specific role [...]
countable noun: A link between two people, organizations, or places is a friendly or business connection between them.
countable noun: A link between two things or places is a physical connection between them.
countable noun: A link is one of the rings in a chain.
countable noun: A link to another person or organization is something that allows you to communicate with them or have contact with them.
countable noun: If there is a link between two things or situations, there is a relationship between them, for example because one thing causes or affects the other.
countable noun: In computing, a link is a connection between different documents, or between different parts of the same document, using hypertext.
verb: If someone or something links two things or situations, there is a relationship between them, for example because one thing causes or affects the other.
verb: If two places or objects are linked or something links them, there is a physical connection between them.
verb: If you link one person or thing to another, you claim that there is a relationship or connection between them.
verb: If you link one thing with another, you join them by putting one thing through the other.