Placing a bet is read as risk, uncertainty and trust in your own judgement. Dream books treat it as a picture of a choice with stakes, not as a tip of any kind.
Where in your waking life have you met something like this lately?
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.