cavity

1 - Tooth decay is dealt with by drilling out the decayed matter and filling up the resulting cavity.

2 - The gold was hidden in a secret cavity in the chimney behind a loose brick.

3 - In humans, the heart is located in the chest cavity, between the lungs, slightly to the left.

4 - The human oral cavity is a storehouse for harmless bacteria, which feed on the leftover bits of food that get trapped between the teeth and deposited in crevices along the gum line.

5 - If you have ever had the misfortune of being under the dentist's drill for a cavity filling, you know how awful the experience is.