Returns all addresses that have been assigned a specific label, aiding in the organization and identification of various addresses used within a wallet.

How is this used?

Your wallet contains multiple addresses you've used for different purposes—some for personal transactions, others for business dealings, and perhaps a few for donations. Assigning a label to each group of addresses helps keep them organized. If you need to review transactions or balances associated with a specific area of your life or business, a command like 'getaddressbylabel' would let you quickly list all addresses under a chosen label.