A strike breaker is someone who is hired to replace a striking worker. There are several synonyms for strike breaker, including scab, replacement worker, and blackleg. A scab is a derogatory term used to describe someone who crosses a picket line to take the job of a striking worker. A replacement worker is someone who is hired during a strike to keep the business running and often receives better pay and benefits than the original employees. Blackleg is a British term used to describe someone who works during a strike and is often associated with violence and intimidation towards striking workers. Regardless of the term used, strike breakers are often viewed negatively and can create tension and conflict between striking workers and management.