pit

a sizeable hole (usually in the ground)

they dug a pit to bury the body

set into opposition or rivalry

let them match their best athletes against ours

a concavity in a surface (especially an anatomical depression)

the hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed

you should remove the stones from prunes before cooking

(Christianity) the abode of Satan and the forces of evil; where sinners suffer eternal punishment;, John Milton; ; -Dr. Johnson

Hurl'd headlong...To bottomless perdition, there to dwell