Collins COBUILD Advanced Learner's English Dictionary - fade out

1. When something fades out, it slowly becomes less noticeable or less important until it disappears completely. He thought her campaign would probably fade out soon in any case. = fizzle out PHRASAL VERB: V P, also V P of n 2. When light, an image or a sound fades out, it disappears after gradually becoming weaker. You’ll need to be able to project two images onto the screen as the new one fades in and the old image fades out. PHRASAL VERB: V P, also V P of n