A broken nose is read as wounded pride, or as the price of getting too involved in something. Dream books link it to conflict that hit close to the face — personal and visible.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.