What is the term used for a phrase that could have more than one meaning such as "This battery is free of charge"?
- the characteristic of having more than one possible interpretation or meaning (AHD)
a sentence or phrase (as “nothing is good enough for you”) that can be interpreted in more than one way. (M-W)
the use of ambiguous phrases or such as can be construed in two senses. A good example is Shakespeare's 'The duke yet lives that Henry shall depose' (Henry VI).( Chambers's Twentieth Century Dictionary)
- Gr. amfibolos ambiguous + logos speech.
Ambiguous means that a phrase can have more than one meaning
Does this help.