The phrase "tell of" can be replaced by various synonyms depending on the context and the tone of the message the speaker wants to convey. Some possible expressions are "narrate," "describe," "recount," "relate," or "share." These synonyms are useful when talking about past experiences, stories, or events that someone wants to communicate to others. Additionally, other synonyms like "express," "communicate," or "articulate" can be used when referring to the act of conveying thoughts, feelings, or opinions. Overall, knowing synonyms for "tell of" can improve the diversity and richness of one's vocabulary while helping to communicate more clearly and effectively.