Expenses definition, cost or charge: the expense of a good meal. See more. Define expense: the act or an instance of expending : expenditure — expense in a sentence Define expenses. expenses synonyms, expenses pronunciation, expenses translation, English dictionary definition of expenses. n. 1. a. Something spent to attain a goal. 1. The economic costs that a business incurs through its operations to earn revenue. In order to maximize profits, businesses must attempt to reduce expenses without. Expenses redirects here. For the row about members' expenses in the UK Parliament which started about May 2009, see United Kingdom Parliamentary expenses scandal. An expense is a cost that occurs as part of a company's operating activities during a specified accounting period. A retailer will likely incur the following expenses. Money spent or cost incurred in an organization's efforts to generate revenue, representing the cost of doing business. Expenses may be in the form of actual cash. Synonyms for expenses at Thesaurus.com with free online thesaurus, antonyms, and definitions. Dictionary and Word of the Day. .183; Business expenses are the cost of carrying on a trade or business. These expenses are usually deductible if the business operates to make a profit. Note. .183; Topic Number: 511 - Business Travel Expenses. Travel expenses are the ordinary and necessary expenses of traveling away from home for your business.