HSK10+
tān
collapse
Phonosemantic compound. 土 represents the meaning and 丹 represents the sound.
土 Meaning component
tǔ
earth
丹 Sound component
dān
cinnabar (native HgS)
坍
collapse; landslide; to collapse
坍塌
to collapse
倒坍
to collapse (of building)
坍方
崩坍
landslide
Make Me a Hanzi
Unicode
Dong Chinese
CC-CEDICT
SUBTLEX-CH
MTSU Chinese text computing