Simple:
* The magician made the rabbit disappear.
* The clouds disappeared behind the mountains.
* My keys disappeared!
Figurative:
* My worries disappeared after a good night's sleep.
* The music disappeared into the night.
* His hopes for a promotion disappeared after his mistake.
Descriptive:
* The old town disappeared under a thick blanket of snow.
* The ship disappeared over the horizon.
* The painting's colors seemed to disappear in the dim light.
With a preposition:
* The book disappeared into thin air.
* The thief disappeared into the crowd.
* She disappeared from my life without a trace.
Remember that "disappear" can have both literal and figurative meanings, so choose the context that best fits your sentence!