Expenses or expenditures needed to carry out operations or activities — costs such as company expenses or travel expenses.
経費精算には領収書が必要です。
Receipts are needed for expense reimbursement.
今年は研究開発の経費が増えた。
This year the research and development expenses increased.
出張の経費は会社が負担することになっている。
The company will cover travel expenses for business trips.