Strikebreakers are individuals who are hired to replace striking workers. They are often viewed as unwelcome by the striking workers and can lead to increased tensions between both parties. However, strikebreakers are also known by a number of other terms depending on the region or industry. Some of the synonyms for strikebreakers include scabs, blacklegs, knobsticks, and strikebusters. In addition, these individuals may also be referred to as strike substitutes, replacement workers, or contingency staff. Regardless of the term used, the presence of strikebreakers remains a controversial topic in labour relations and can have a significant impact on the outcome of labour disputes.