>>This does not prove in any way that the following claim is right
>>>>>>>Also note that m alone is not allowed as a variable name
>
>OK, I confess that I didn't check this, and I may be wrong. Just like I haven't tested using any of the other about 1000 reserved words as variable names. Microsoft has written the following warning, which I try to follow: When programming, avoid using reserved words as names for window, table, or field names. If you use a reserved word as a name, it might generate a syntax error.

This works:
m = 5
? m
? m.m

But, I wouldn't recommend it. :-)

Best regards,
Rick C. Hodgin