Definition of "Some" :

adjective: relatively many but unspecified in number

"They were here for some weeks."

adjective: relatively much but unspecified in amount or extent

"We talked for some time."

adjective: remarkable

"That was some party."

adjective: (quantifier) used with either mass nouns or plural count nouns to indicate an unspecified number or quantity

"Have some milk."

adverb: (of quantities) imprecise but fairly close to correct

"Some forty people came."