twilight zone

English Thesaurus

1. the ambiguous region between two categories or states or conditions (usually containing some features of both) (noun.attribute)

hypernym	:	ambiguity, equivocalness,
definition	:	unclearness by virtue of having more than one meaning (noun.attribute)

2. the lowest level of the ocean to which light can reach (noun.object)

hypernym	:	davy jones, davy jones's locker, ocean bottom, ocean floor, sea bottom, sea floor, seabed,
definition	:	the bottom of a sea or ocean (noun.object)