Senza sordino is an Italian phrase that translates to "without mute" in English. It is commonly used in the music world to indicate that the notes should be played without the use of a mute, resulting in a brighter and more resonant sound. There are a few synonyms that can be used instead of senza sordino, including "open string", "unmuted", and "con sordino off". These synonyms are all used to indicate that the music should be played with an open and full sound, without the dampening effect of a mute. Musicians often choose to use senza sordino or one of its synonyms to add an extra layer of expression to their performance.