yān​xiāo​yún​sàn

vanish

烟消云散 (煙消雲散) yān​xiāo​yún​sàn
vanish idiom
to vanish like smoke in thin air; to disappear

Upon hearing the good news, his worries vanished into thin air.

Frequency

Movie subtitles
1.70 per million appears in 1% of films
Written text
1.92 per million

Sources

Definitions
CC-CEDICT