verb/paʁ.tiʁ ɑ̃ fy.me/
to be consumed by and destroyed in fire (which is only implied) such that smoke is the only evidence of something having happened (ash, smut, etc. notwithstanding); to be ruined, destroyed; to go up in smoke, vanish into thin air
“L'angoisse me fait la guerre et part en fumée.”
Synonyms: être réduit en cendres, s'en aller en ruine