What is another word for subterranean areas?
Pronunciation: [sˌʌbtɪɹˈe͡ɪni͡ən ˈe͡əɹi͡əz] (IPA) 
Subterranean areas refer to spaces that are located beneath the surface of the earth, such as caves, tunnels, and underground facilities. There are various synonyms that can be used to describe these areas, depending on the context and the specific characteristics of the space. For example, the term "underground" may be used as a general synonym, whereas "cavernous" may be better suited to describe large, open underground spaces. Other synonyms for subterranean areas include "subterraneous," "belowground," "subsurface," and "subterrestrial." These terms can help provide clarity and specificity when discussing different types of underground environments.
