穴居

to live in a cave / (of animals) to be of burrowing habit

surname Ju

(archaic) sentence-final particle expressing a doubting attitude

to reside / to be (in a certain position) / to store up / to be at a standstill / residence / house / restaurant / classifier for bedrooms

cave / cavity / hole / acupuncture point / Taiwan pr. [xue4]

cave man