There is something for everyone at Green Flea Market.

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What is the meaning of 'something' here? Is it #1 or #2?
The following are dictionary definitions.

1. an object, situation, quality, or action that is not exactly known or stated
2. a thing for which you are grateful, especially because an unpleasant thing has also happened

The meaning is somewhere in between the dictionary definitions. There's something for everyone at the Green Flea Market means that there's something for everyone to buy there. There are so many things for sale that everyone will find something they want or need to buy.