The term "flowing tongue" is typically used to describe someone who speaks fluently and eloquently. Synonyms for this term include "silver-tongued," "smooth-talking," "articulate," and "eloquent." A silver-tongued person has the ability to charm or persuade others with their words, while a smooth-talking person is able to speak smoothly and convincingly. An articulate person is able to express themselves clearly and effectively, while an eloquent person is able to use language in a powerful and persuasive manner. All of these synonyms describe someone who is skilled in using language to communicate effectively, whether it be to convince others or simply to express themselves clearly.