Bahs is a common synonym for the word "nonsense" or "rubbish." However, there are several other synonyms that can be used interchangeably with this word. Some of the popular synonyms of bahs include trash, claptrap, hogwash, and balderdash. Other synonyms for this word include drivel, twaddle, bunkum, hokum, and gibberish. All these synonyms are used to describe something that is ridiculous, absurd or nonsensical. Whether you are writing an essay, report, or just talking to friends, these synonyms can be used to add variety to your language and avoid repetition of words such as bahs.