expense

American  

[ik-spens] / ɪkˈspɛns /

noun

1. cost or charge.

   the expense of a good meal.

   Synonyms:

   expenditure, outlay

2. a cause or occasion of spending.

   A car can be a great expense.

3. the act of expending; expenditure.

4. expenses,

   1. charges incurred during a business assignment or trip.

   2. money paid as reimbursement for such charges.

      to receive a salary and expenses.

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verb (used with object)

expensed, expensing

1. to charge or write off as an expense.

verb (used without object)

expensed, expensing

1. to be expensed.

idioms

1. at the expense of, at the sacrifice of; to the detriment of.

   quantity at the expense of quality.

expense British  

/ ɪkˈspɛns /

noun

1. a particular payment of money; expenditure

2. money needed for individual purchases; cost; charge

3. (plural) incidental money spent in the performance of a job, commission, etc, usually reimbursed by an employer or allowable against tax

4. something requiring money for its purchase or upkeep

   the car was more of an expense than he had expected

5. to the detriment of

   he succeeded at the expense of his health

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verb

1. (tr) to treat as an expense for book-keeping or tax purposes

expense More Idioms  

1. see at the expense of; go to the trouble (expense); money (expense) is no object.

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Related Words

See price.

Other Word Forms

• expenseless
  adjective
• preexpense
  noun

Etymology

Origin of expense

First recorded in 1350–1400; Middle English, from Late Latin expēnsa, noun use of feminine of expēnsus, past participle of expendere “to weigh out, pay”; see expend

Explanation

An expense is a cost, but you can also use this word to mean the figurative cost of something. If you find it embarrassing to dress up as Santa, you might say that you do it to amuse your nephews, at the expense of your pride. When you give one thing up in order to get something else, its cost or sacrifice is the expense of getting what you want. You might worry that politicians want to cut taxes at the expense of schools that need money, or that oil companies increase drilling at the expense of the environment. The root of expense the Latin expendere, "to weigh out money or pay down."

Example Sentences

Ruger Chairman John Cosentino said the agreement provides stability and reduces expense and distraction, while also preserving the company’s independence.

From The Wall Street Journal • May 4, 2026

They are not facing intense pressure to cut labor costs, the single biggest expense for most businesses.

From MarketWatch • May 2, 2026

“Experience shows that it is not wise to trust human cupidity where it has the opportunity to aggrandize itself at the expense of others,” they wrote.

From Barron's • May 2, 2026

Bass spokesperson Kolby Lee said the mayor’s office agrees with the importance of the program and is looking for other sources of funding to cover the expense.

From Los Angeles Times • May 1, 2026

My stint at the university had left me feeling worn out, putting me in a far-from-perfect juggle while also straining our finances with the expense of child care.

From "Becoming" by Michelle Obama

Related Words

• amount
• budget
• charge
• consumption
• debt
• expenditure
• insurance
• investment
• liability
• loan
• loss
• mortgage
• obligation
• outlay
• payroll
• price
• price tag
• rate
• risk
• spending