- I'm low on cash.
- I'm low on funds.
Do these mean the same thing?
Yes! Essentially, they mean the same thing. However, if you want to split hairs, 'cash' refers to money or an equivalent, as a check, paid at the time of making a purchase.
'Funds' would include 'cash' and other assets such as stocks, bonds, etc. that might not be as readily available as 'cash'.