equivocalness vs ambiguity

equivocalness and ambiguity both are nouns.

Word	Noun	Adjective	Verb	Adverb
equivocalness	Yes	No	No	No
ambiguity	Yes	No	No	No

As nouns, equivocalness and ambiguity are synonyms defined as:

equivocalness and ambiguity: unclearness by virtue of having more than one meaning

equivocalness (noun)	ambiguity (noun)
unclearness by virtue of having more than one meaning	unclearness by virtue of having more than one meaning
	an expression whose meaning cannot be determined from its context