Below are two of the "many" definitions for several (no pun intended)
@The Insomniac
"A couple is two. Few and several depend on the context and how many you're selecting them from. In general, I would assume that a few was less than 10% of whatever the total number is, and several is definitely more than four, and probably more than six"
"Several means between four (4) and eleven (11). It can be any number between this range, the term 'several' is used as the number because it is a digit in the middle. A dozen is always twelve. No more and no less, but
twelve (12) precisely."