There are several synonyms for the phrase "put to silence," which means to silence or quieten someone or something. One of the most common synonyms is "silence," which has a similar meaning to "put to silence" and indicates a complete stop to noise or speech. Another synonym that can be used is "quiet," which means to calm or pacify something or someone. Other possible synonyms include "hush," "mute," "still," "quell," "suppress," and "stifle." Each of these synonyms can be used to convey the idea of stopping or reducing noise or speech so that something or someone is silenced or put to rest.