1. past tense and past participle of disappear; to cease to be visible or to go out of sight
2. past tense and past participle of disappear; to cease to exist or to become lost

Examples

• The magician made the rabbit disappear from the hat.
• My keys have disappeared somewhere in the house.
• The sun disappeared behind the clouds.
• Several important documents disappeared from the office.
• The pain in her knee disappeared after taking medicine.
• The old building disappeared when they tore it down.
• He disappeared into the crowd and was never seen again.