pit
US /pɪt/
UK /pɪt/

1.
a large hole in the ground, or a hollow in a surface
:
•
The construction workers dug a deep pit for the foundation.
•
There's a small pit in the road that needs to be filled.
2.
1.
2.
to set (an animal, especially a dog) to fight against another animal or a person
:
•
They used to pit dogs against each other in illegal fights.
•
The coach tried to pit the two strongest players against each other in practice.
3.
to remove the pit from (a fruit)
:
•
She carefully pitted the cherries before making the pie.
•
You need a special tool to easily pit olives.