The phrase "do ill" typically refers to performing malicious or harmful actions towards another person or group. There are various synonyms for this phrase, including "cause harm," "inflict pain," "commit wrongdoing," "perpetrate evil," and "act with malice." Other related terms include "bad intentions," "hostile behavior," and "vicious actions." It is important to note that any form of harm towards others is not acceptable and can have serious consequences. Expressing empathy, kindness, and respect towards others can help prevent the need for these negative actions and create a more peaceful and harmonious community.