The word "flos," which is Latin for "flower," has a variety of synonyms that can be used in order to add variety and depth to one's writing. Some of the most commonly used synonyms include "bloom," "blossom," "petal," "bloomage," and "inflorescence." Other options include "posy," "garland," "corsage," and "wreath." Using these synonyms in place of "flos" can help to paint a more vivid and descriptive picture for readers and can also add a touch of elegance and sophistication to one's writing. Ultimately, the choice of synonym will depend on the specific context and tone of the writing, as well as the personal stylistic preferences of the author.