Flav is a slang term that is commonly used to describe something that is full of flavor or is flavorful. If you are looking for alternative words that can be used instead of flav, there are several options. Some synonyms for flav include taste, savor, zest, tang, aroma, essence, seasoning, and spice. Other options could be relish, piquancy, or appetizing if the context allows. These words can be interchanged depending on the description of the flavor or what the author wants to convey. By using these alternative words, you can add variety to your writing and avoid repetition.