The term 'cod catchers' refers to two different types of fishing equipment used to catch cod. The first is a net, which is a four-letter word, and the second is a gillnet, which is an eight-letter word. NETS are typically made of rope or mesh and are used to capture fish by entangling them in the net. Gillnets are similar to NETS, but they are designed to capture fish by their gills as they swim through the mesh. Both NETS and gillnets are commonly used to catch cod, making them essential tools for cod catchers.