What Does "Ambiguous" Mean?  

adjective

• (of language) open to more than one interpretation; having a double meaning.
  "ambiguous phrases"

  • unclear or inexact because a choice between alternatives has not been made.
    "the result was ambiguous"

What Does "Structure" Mean?

noun

• the arrangement of and relations between the parts or elements of something complex.
  "flint is extremely hard, like diamond, which has a similar structure"

verb

• construct or arrange according to a plan; give a pattern or organization to.
  "the game is structured so that there are five ways to win