The word "whats" is a slang term for "what is" or "what's going on." There are several synonyms for this term, including "what's happening," "what's up," "what's cracking," and "what's the deal." Each of these phrases is commonly used in casual conversation to inquire about someone's current situation or to start a conversation. These synonyms can be considered interchangeable and can be used interchangeably depending on personal preference. It's important to note that while these slang terms are commonly used, they may not be appropriate in professional settings or with individuals who you don't know well.