綻

be rent, ripped, unravel, run, begin to open, smile

Kun

ほころびるhokorobiru

On

タンtan

Kun is the Japanese reading, used when the kanji stands alone with kana after it. On comes from Chinese and is mostly used in compound words.

Radical

糸silk

Parts

糸silk幺short thread小small疋bolt of cloth宀roof