Pluggings are defined as a substance used to fill or stop up holes, gaps, or cracks. Some synonyms for the word pluggings include fillings, sealants, stoppers, corks, plugs, patches, putty, sealers, caulking, and cement. Each of these words describes a material or substance used to fill or clog an opening. Depending on the application, different types of pluggings may be more effective or appropriate. For instance, cement might be used to fill voids in a concrete wall whereas a putty would be better suited to filling gaps in a window frame. Whatever the situation, pluggings are an essential tool for preventing leaks, reducing drafts, or stopping unwanted insects or rodents from entering a space.