1.
imaginary; fictional; fictitious
Something that does not exist in reality; invented or made up. Used for stories, characters, scenarios, etc.
2.
overhead; aerial (technical)
Installed or suspended in the air. Used for cables, power lines, etc.
Related Words
Related:
空想 (fantasy)
Compare:
虚構 (fiction)
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フィクション (fiction)
Compare:
創作 (creative work, fiction)