To vanish.
To make vanish; especially, to abduct and murder surreptitiously for political reasons.
To go missing; to become a missing person.
To go away; to become lost.
to disappear; to escape or pass off without effect
to expel moisture from (usually by means of artificial heat), leaving the solid portion
to give vent to; to dissipate
to transition from a liquid state into a gaseous state