The word "re-warned" means to be warned again or to receive a repeated warning. Synonyms for "re-warned" could include "reminded", "cautioned again", "advised anew", "alerted once more", "notified again", or "informed again". Other synonyms that could be used in a similar context include "reiterated", "emphasized", "repeatedly cautioned", "reinforced", or "reassured". All of these words indicate that someone is receiving a warning, notice, or reminder multiple times, emphasizing the importance of the original message. Whether it is a safety precaution or a reminder of an upcoming deadline, re-warning someone is an essential aspect of effective communication.