toothed wheel (noun)

1. The main character stumbled upon a hidden room filled with toothed wheels, sending shivers down their spine.

2. In the gothic novel, a toothed wheel played a crucial part in revealing the ancient prophecy.

3. According to the ancient scriptures, the toothed wheel symbolizes the cycle of life and death.

4. In the futuristic dystopian world, rebels used toothed wheels to unlock secret passages and escape the oppressive regime.