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twilight zone

twaI laIt zon
part of speech: noun
definition 1: any vague, uncertain, or ill-defined condition or state, esp. between two well-defined polarities.
The situation, because of its complexity, left him in a moral twilight zone.
definition 2: a state of mind between and having characteristics of both reality and fantasy.
definition 3: the depth in water of light's deepest penetration.