disappear

(verb) get lost, as without warning or explanation. Synonyms: vanish, go away. Example: "He disappeared without a trace."

(verb) become invisible or unnoticeable. Synonyms: vanish, go away. Example: "The effect vanished when day broke."

(verb) cease to exist. Synonyms: vanish. Example: "An entire civilization vanished."

(verb) become less intense and fade away gradually. Synonyms: melt, evaporate. Examples: "Her resistance melted under his charm." "Her hopes evaporated after years of waiting for her fiance."