A "trawl" is a method used in fishing where a large net is dragged through the water to catch fish. This technique allows fishermen to capture a wide variety of fish at once, making it an efficient way to gather seafood. The net can be pulled behind a boat, covering a large area of the ocean or sea, which helps in catching different species like cod or shrimp. In addition to fishing, the term "trawl" can also refer to searching for information or data. For example, researchers might trawl through documents or online resources to find specific facts or insights. This process involves sifting through a lot of material to uncover valuable information, similar to how fishermen sift through their catch.