A finder is a person who discovers something that was lost or hidden. If you spot your friend's missing library book under a cafeteria table, you're the finder. If a beachcomber discovers an old coin washed up on the sand, they're the finder of that treasure.

The word often appears in the phrase finders keepers, a playground rule claiming that whoever finds something gets to keep it. In real life, a finder is expected to return what they find to its rightful owner. If you find a wallet with someone's ID inside, being the finder means you have the chance to return it.

A finder can also be someone whose job involves locating things for others. A talent finder might search for skilled athletes or musicians. A fact-finder investigates situations to discover the truth. Some people even work as professional finders, helping others locate rare books, antiques, or investment opportunities.

When you're the finder, you're the one who makes a discovery, whether by luck, careful searching, or simply being in the right place at the right time.