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 slowly disappear.
To fade from a cut to black in a movie.
To decrease in volume, such as at the end of a song, until there is only silence.
A type of transition used in film, usually at the end of a scene, involving a fade to black from the cut.