no man's land vs equivocalness

no man's land and equivocalness both are nouns.

Word	Noun	Adjective	Verb	Adverb
no man's land	Yes	No	No	No
equivocalness	Yes	No	No	No

As nouns, equivocalness is a hypernym of no man's land; that is, equivocalness is a word with a broader meaning than no man's land:

no man's land: the ambiguous region between two categories or states or conditions (usually containing some features of both)
equivocalness: unclearness by virtue of having more than one meaning

Other hypernyms of no man's land include ambiguity.

no man's land (noun)	equivocalness (noun)
the ambiguous region between two categories or states or conditions (usually containing some features of both)	unclearness by virtue of having more than one meaning
an unoccupied area between the front lines of opposing armies
land that is unowned and uninhabited (and usually undesirable)