an additional number or amount of something:
Would you like some more cake?
2 American English spoken
'Are you feeling better today?' 'Some, I guess.'
an expression meaning about 500 people, 50%, £100 etc - used especially when this seems a large number or amount:
She gained some 25 pounds in weight during pregnancy.
a fairly large number or amount of something:
We travelled some little way before noticing that Bradley wasn't with us.