When looking for synonyms for the phrase "telling off," there are a wide variety of options available to choose from. Some alternatives to consider include scolding, reprimanding, admonishing, chastising, and lecturing. Each of these words conveys a sense of criticism or disapproval, expressed in a forceful or authoritative manner. Other possible synonyms might include dressing down, berating, chewing out, or upbraiding. Ultimately, the choice of synonym will depend on the specific context and desired tone of the message being conveyed. Whether you want to express mild disapproval or offer a stern warning, there are countless ways to articulate the idea of "telling off" in your language.