The key to winning a game.
The key to development is economic integration.
Word: "key"
the same meaning

The pit floor showed where a ring of post holes had been.
Many sunken ships rest on the ocean floor.
Word: "floor"
the same meaning

The store is huge, occupying an entire city block.
He lives in the next block.
Word: "block"
the same meaning

There shouldn't be more than two dozen Christmas cards left to write.
Can I have a dozen eggs, please?
Word: "dozen"
the same meaning