* Shortwave Listener: This is the most common meaning of SWL, referring to someone who listens to radio broadcasts on the shortwave frequency bands.
* Safe Working Load: This term is used in engineering and construction to indicate the maximum weight a structure or component can safely support.
* Standard Weight Limit: This term is sometimes used in transportation to indicate the maximum weight allowed for a vehicle or container.
* South West Laboratories: This is a company that provides technical services to various industries.
To understand the meaning of SWL in a specific context, you need to consider the surrounding words and phrases.