When it comes to reprimanding someone, the phrase "give reproof" may not always be the most appropriate. Luckily, there are several synonyms that can be used to convey a similar message. One option is to "rebuke" someone, which means to express sharp disapproval or criticism. Another option is to "chide" someone, which means to scold or reprimand them mildly but firmly. Alternatively, you could "admonish" someone, which means to caution or advise against something. Other synonyms for giving reproof include "censure," "reproach," and "condemn." Ultimately, the best synonym to use depends on the nature of the offense and the relationship between the parties involved.