A more thorough explanation:

Definition: A strike is when workers stop working on purpose to make their employer agree to their demands. They might want more money, better benefits, or a safer workplace. In legal terms, a strike can also refer to a request to remove something from a legal case.

• Teachers went on strike to demand higher salaries and better working conditions.
• Factory workers organized a strike to protest against unsafe working conditions.
• In a legal case, the defense lawyer filed a motion to strike certain evidence from the record.

The first two examples show how workers can use a strike to demand better treatment from their employer. The third example shows how the term can be used in a legal context to remove evidence from a case.