1. (

• ghost ,
• shade ,
• spook ,
• wraith ,
• specter ,
• spectre

) a mental representation of some haunting experience; "he looked like he had seen a ghost"; "it aroused specters from his past" ;

2. (

• apparition ,
• phantom ,
• phantasm ,
• phantasma ,
• fantasm ,
• specter ,
• spectre

) a ghostly appearing figure; "we were unprepared for the apparition that confronted us" ;