"Be nets" is a term that refers to the use of nets, screens or barriers to prevent insects or other unwanted pests from entering a certain area. There are a variety of synonyms that can be used to describe this process, including screening, meshing, fencing, caging, enclosing, and even barricading. Each of these words carries a slightly different connotation, but they all serve the same essential purpose: to create a physical barrier that keeps pests out and provides a safe and secure environment for those within. Whether you're trying to keep mosquitos out of your bedroom or protect crops from hungry birds, there are many options available for effective "be netting".