The term "Dilling" in the context of Sudan does not correspond to a widely recognized or established concept, location, or entity in available encyclopedic sources. Accurate information is not confirmed regarding its specific meaning or reference within Sudan.
It is possible that "Dilling" may be a variant spelling, a local name, or a transliteration of a toponym or ethnolinguistic term from a regional language. However, no reliable sources currently verify such usage in connection with Sudan. The name could potentially be associated with a small locality, a personal name, or a phonetic rendering of a similar-sounding term, but these possibilities remain speculative without corroboration.
Further context or clarification would be required to accurately identify or describe the term in relation to Sudan.