Barbu is a French term for a bearded man. There are various synonyms for the word barbu that can be used in different contexts, languages, and regions. Some of the synonyms for barbu include bearded, hairy, whiskered, stubbled, facial hair, and bristly. In some cultures, barbu might be used to refer to a wise old man or a religious leader, which is why other synonyms for the word can include sage, elder, guru, or prophet. Thus, depending on the context and cultural implications, there are different synonyms for the term barbu that can effectively depict someone with a beard, whiskers, or facial hair to convey the intended meaning.