equivocation vs ambiguity

equivocation and ambiguity both are nouns.

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

As nouns, ambiguity is a hypernym of equivocation; that is, ambiguity is a word with a broader meaning than equivocation:

Other hypernyms of equivocation include equivocalness, untruthfulness.

equivocation (noun)	ambiguity (noun)
falsification by means of vague or ambiguous language	unclearness by virtue of having more than one meaning
intentionally vague or ambiguous	an expression whose meaning cannot be determined from its context
a statement that is not literally false but that cleverly avoids an unpleasant truth