Final answer:
The word 'dangle' means to suspend or hang loosely from something.
Step-by-step explanation:
The word 'dangle' in the given sentence means to suspend or hang loosely from something. It describes the action of Jane's bony hand hanging down from the sleeve of her oversized raincoat. In this context, the word 'dangle' can be interpreted as holding a loose or relaxed position without any significant movement, similar to how a hand hangs down from a sleeve.
For example, a person might dangle their keys from their fingers or dangle their feet over the edge of a cliff. It implies a lack of support or stability, as the object or body part is not held firmly in place.