Ambiguity, illustrated.

am•bi•gu•i•ty (ˌæm bɪˈgyu ɪ ti)

1.doubtfulness or uncertainty of meaning or intention: to speak with ambiguity; an ambiguity of manner.
2.an unclear, indefinite, or equivocal word, expression, meaning, etc.: a contract free of ambiguities; the ambiguities of modern poetry.

(Dictionary.com)