Wikipedia does not have an article on "claustrophilia", but its sister project Wiktionary does:

Read the Wiktionary entry "claustrophilia"

You can also:

Search for Claustrophilia in Wikipedia to check for alternative titles or spellings.

Start the Claustrophilia article, using the Article Wizard if you wish, or add a request for it; but please remember that Wikipedia is not a dictionary.

From a cross-project redirect: This is a soft redirect that is used as a connection to other Wikimedia projects. A Wikidata element is linked to this page: (no entity). Error: no Wikidata item linked! Either link a Wikidata item or remove this template. Use this template only on soft redirects – for hard redirects use ((R with Wikidata item)).