classical music. In technical musical usage this means music composed during the late eighteenth and early nineteenth centuries, characterized by the development of the sonata by such composers as Mozart. In popular use, however, the term is used to mean any serious art music as distinct from jazz, pop, or folk.
The definition of vague is something unclear, hazy or uncertain. An example of vague would be directions to a house that don't include street names. YourDictionary definition and usage example.
Definition of ambiguity. plural. ambiguities. 1a : the quality or state of being ambiguous especially in meaning The ambiguity of the poem allows several interpretations.b : a word or expression that can be understood in two or more possible ways : an ambiguous word or expression. 2 : uncertainty.