Masan, Prospero, airiness, airy nothing, apparition, appearance, astral, astral spirit, banshee, bodilessness, concealment, control, delusiveness, departed spirit, disappearance, disassociation, disconnection, discreteness, disembodied spirit, disjunction, disjuncture, dissociation, duppy, dybbuk, eidolon, ethereality, fallaciousness, false appearance, false light, false show, falseness, fineness, flimsiness, form, ghost, grateful dead, guide, hant, haunt, idealization, idolum, illusionism, illusionist, illusiveness, impalpability, imperceptibility, impertinence, imponderability, inapplicability, inappositeness, inconnection, inconsequence, inconsequentiality, inconsiderableness, incorporeal, incorporeal being, incorporeality, incorporeity, independence, indifference, indiscernibility, ineffectuality, inferiority, insignificance, insolidity, insubstantiality, intangibility, invisibility, irrelation, irrelevance, larva, lemures, littleness, low priority, magic, magic act, magic show, magician, manes, marginality, materialization, mistiness, negligibility, nonappearance, oni, pettiness, phantasm, phantasma, phantom, picayune, picayunishness, pokiness, poltergeist, presence, prestidigitation, puniness, rareness, rarity, revenant, secondariness, secrecy, seeming, semblance, separateness, shade, shadow, shape, show, shrouded spirit, simulacrum, sleight of hand, slightness, smallness, sorcerer, sorcery, specious appearance, specter, spectral ghost, spirit, spook, sprite, subtility, subtilty, subtlety, tenuity, tenuousness, the invisible, the unseen, theophany, thinness, unactuality, unconcreteness, unconnectedness, unimportance, unimpressiveness, unnoteworthiness, unperceivability, unreality, unrelatedness, unseeableness, unsolidity, unsubstantiality, unsubstantialness, vagueness, viewlessness, vision, walking dead man, wandering soul, wraith, zombie