"NAT BUR STAND" does not appear to be a recognized term or word in the English language. It seems to be a combination of random letters with no apparent meaning or known synonyms. Without a specific context or definition for "NAT BUR STAND", it is difficult to provide synonyms for a term that doesn't exist. It is important to use proper and recognized vocabulary to effectively communicate and avoid confusion. Instead, consider using established words and phrases to convey your intended meaning.