Adjective

1. relative to two or more wikis

   There are a growing number of interwiki links.

Noun

1. The structure, space or network of links between wikis.

Verb

1. To create links between one wiki and another.

   To interwiki from Wiktionary to Wikipedia, one would use , instead of wikt:. For example to interwiki to wikipedia about interwiki, you would use interwiki.