Can anyone help me with this general question?
Google seems to be equally divided over both and some websites say that they are interchangeable, but one of them must be correct for such usage.
If anyone can help out, it would be greatly appreciated!
Thanks in advance.
'Bounds' (56 citations in COCA) seems to be more common than 'boundaries' (16), but both appear to be acceptable. There is no reason why only one 'must' be correct.