›COMMERCE, FINANCEif profits, sales, etc. are flat, they are not growing or increasing: Demand for our machinery abroad is increasing, while growth is flat at home.
›STOCK MARKETif the stock market is flat, the prices of shares are not rising or falling: The market remained at 9,000 points after a flat day of trading yesterday.
›fixed and without any additional costs: He submitted a flat price for completing the work, including all labour and materials.
›HRused to describe the structure of an organization in which there are not many different levels of employees between the top and the bottom: Companies with a flat organizational structure can usually make decisions more quickly. → Comparehierarchical