澒洞

𭱊洞
hòngtóng

pervasive; vast

Wiktionary

Entry Composition

1 澒 hòng
  1. vast
  2. infinite
=2 洞 dòng
  1. cave
  2. hole
  3. zero (unambiguous spoken form when spelling out numbers)

classifier: 個
=2 洞 tóng used in 洪洞 Hóngtóng, a county in Shanxi