塌
tā · HSK 7
to collapse
🏚️ 土 earth radical + 㗇 phonetic (tà); when the earth/foundation gives way, things collapse
塌 — earth 土 + 㩉 (phonetic)
塌 is a semantic-phonetic compound. The earth radical 土 carries the meaning, suggesting collapse, sinking, or caving in of ground or structures. The right side 㩉 supplies the sound, giving the modern reading tā. The character extends to figurative senses like sagging or slumping down.