How many does the word 'several' refer to?

Two would be a couple.
Three would be a few.
Several would mean four+ but not more than __?

websters gives 3 options:
a) more than one
b) more than two
c) a great number

I don't like precisely defining words that are by nature vague (if you knew the exact number, after all, you'd be likely to use it). If you draw the line at 7, then what happens when you describe somethign as several (thinking there are around 7) and discover there are truly 8. Would you have been wrong to describe it as several? Once you accept 8, why not 9?

I would also say that it depends on what the units are. For example, a few minutes might mean even higher than 5, but a few hours probably wouldn't mean more than 4.

'Two's company and three's a crowd'

Here's the O.E.D : adjective . 'More than two but not many. (LAW) more than one [trust the lawyers to be different from laymen!]
: pronoun. 'More than two but not many of or (of) a specified group'.

Now, isn't that helpful!