滚
gǔn · HSK 5
to roll
🌊 氵(water) + 滚 phonetic — water rolling/boiling; slangy 'roll away!'
The 氵 radical marks water; the right side gives the sound gǔn. Core sense is rolling motion — boiling water rolls, balls roll, and telling someone 滚 means 'roll outta here.'
滚 — water 氵 + 衮 (gǔn, phonetic)
A semantic-phonetic compound. The water radical 氵 gives the meaning 'rolling/gushing water,' while 衮 (gǔn, a ceremonial dragon robe) supplies the sound. Originally it described water boiling or surging, later extended to anything rolling, and as a verb 'get out!'