small sum of money; a little money
Refers to a modest amount of money, often used in contexts like saving, earning, or spending a little extra.
I save up a little money and go on a trip.
I started a part-time job to earn some extra money.
moderately wealthy person; person of modest means
Compound of 小 (small) and 金 (money). The reading こがね is a kun'yomi compound.