Working capital refers to the financial resources that allow a business to meet its daily operations. Some synonyms for working capital include "liquid assets," which refers to the cash or other assets that a business can quickly convert to cash to cover expenses. Another synonym is "operating capital," which is the capital necessary to keep a business running. Another similar term is "current assets," which are assets that can be easily converted into cash within a year. Finally, "working assets" can also be used to describe capital that is actively used to contribute to a business's success and daily operations. Overall, these synonyms can be used interchangeably to describe the financial resources that keep a business running.