Here’s the definition(s) of ambiguous (from dictionary.com)
Ambiguous:
*open to or having several possible meanings or interpretations; equivocal: an ambiguous answer.
*of doubtful or uncertain nature; difficult to comprehend, distinguish, or classify: a rock of ambiguous character.
*lacking clearness or definiteness; obscure; indistinct: an ambiguous shape; an ambiguous future.
My students often use the phrase “MU,” meaning “mutual understanding.” [...]