If it's extra money, it's a bonus.
wages
The common word is "spend."
Another possibility in finance is "grant."
Tight (as in tight-fisted).
money
If you mean a storage chest, then trunk is a 5-letter word for it. If you mean the upper part of the body, then torso is a 5-letter word for it.
scrip
speed.
shell, error, money, moola
ideas
speak
raged
Jerky
Abide?
agony.
opted