Liquidity

The ability to quickly change assets into cash.

If your main asset consists of a bank account, it can easily be used to pay bills. We would say your assets are liquid. If your main asset is a building that may take months and months to sell, you cannot readily use that asset to pay your monthly electric bill so we would say your assets are not liquid.

https://accounting.uworld.com/cpa-review/lc/accounting-dictionary/term/liquidity/