blow out, extinguish, quench, snuff out - put out, as of fires, flames, or lights; "Too big to be extinguished at once, the forest fires at best could be contained"; "quench the flames"; "snuff out the candles"

darken - become dark or darker; "The sky darkened"

edit, redact - prepare for publication or presentation by correcting, revising, or adapting; "Edit a a book on lexical semantics"; "she edited the letters of the politician so as to omit the most personal passages"

faint, pass out, swoon, conk - pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain

change state, turn - undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election"