Bottom kill is a term used in the oil industry that refers to the process of sealing a well by plugging the hole at the bottom of the wellbore. This process is commonly used to permanently abandon wells that are no longer producing oil or gas. Synonyms for bottom kill include bottom plug, bottom cement, and bottom seal. These terms all refer to the same process of closing off the bottom of a well to prevent any further fluids from escaping. Whatever the term used, the bottom kill is a critical process in the oil industry as it helps to ensure the safety of workers and the environment.