twilight_zone has definitions from the field of geography
1
[ noun ] (geography) the lowest level of the ocean to which light can reach

Related terms

ocean_floor

2
[ noun ] the ambiguous region between two categories or states or conditions (usually containing some features of both)

Synonyms

no_man's_land

Examples

"but there is still a twilight zone, the tantalizing occurrences that are probably noise noise but might possibly be a signal" "in the twilig

Related terms

ambiguity

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