"Force into silence" is an expression that refers to the act of imposing silence on someone through verbal or physical means. There are several synonyms for this expression, including "muzzle," "gag," "quiet," "suppress," "stifle," "quell," "hush up," "restrain," and "silence." Each of these words conveys the idea of preventing someone from speaking or expressing themselves freely, often through coercion or force. Using an alternative expression to "force into silence" can add variety and nuance to your writing, and help you convey your point more precisely and effectively.