Obturation refers to the process of sealing a canal or cavity to prevent fluids or gases from passing through. There are several synonyms for this term, including filling, plugging, clogging, blocking, sealing, and occlusion. Obturation is commonly used in a dental context to describe the process of filling a root canal to protect it from infection. In the context of plumbing, obturation is used to describe the process of clogging or blocking a pipe to prevent the flow of fluids. Overall, obturation and its synonyms are critical concepts in several fields, including medicine, dentistry, and engineering.