phantasm
[noun]
Synonyms: delusion, hallucination, ignis fatuus, illusion, mirage, apparition, eidolon, ghost, phantom, revenant, shade, shadow, specter, spectrum, spirit, fancy, daydream, dream, fantasy (or phantasy), nightmare, vision

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Related Words: fabrication, fiction, invention

[TahlilGaran] English Synonym Dictionary ▲

phan‧tas‧m /ˈfæntæzəm/ noun [uncountable and countable]
[Date: 1200-1300; Language: Old French; Origin: fantasme, from Latin phantasma, from Greek, from phantazein 'to present to the mind']
literary something that exists only in your imagination Synonym : illusion

[TahlilGaran] Dictionary of Contemporary English ▲