Here are some common meanings:
* DDB (Double-Declining Balance): This is an accounting term for a depreciation method that calculates depreciation at twice the rate of the straight-line method. This method is commonly used in accounting and financial analysis.
* DDB (Direct Digital Broadcasting): This term refers to a technology used for broadcasting digital television signals directly to receivers. This is often used in satellite television and cable television.
* DDB (Dentsu Inc. & DDB Worldwide): This is a large global advertising and marketing agency network. They have operations in many countries and are known for their work with major brands.
To determine the correct meaning, please provide more context. For example, are you referring to a business, a technology, or an accounting concept? Knowing the context will help me give you the most accurate answer.