as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
what is a bond fund?
user
i used the term "bond fund" to mean a mutual fund which invests in bonds. vanguard has a list.  if you live in pa, oh, ma, fl, ca, nj, or ny there are tax free funds you can invest in on that list.
assistant