Just when you think your friend has finished her long list of complaints, she begins a new sentence with, “Furthermore…” a word that signals she has even more to complain about.
Furthermore is a useful word when you have an additional point to make in an argument or explanation. It is often used at the beginning of a sentence and followed by a comma. You might tell your parents why you think you should go on a Hawaiian vacation and then add, “Furthermore, volcanic ash is excellent for the complexion.” For variety, you can also use words like moreover or additionally in the same way.