bunker
US /ˈbʌŋ.kɚ/
UK /ˈbʌŋ.kɚ/

1.
2.
an underground shelter, typically for use in wartime.
:
•
The family took refuge in the concrete bunker during the air raid.
•
The old military bunker is now a museum.
1.
to hit (a golf ball) into a bunker.
:
•
He accidentally bunkered his shot on the 18th hole.
•
Don't bunker your approach shot, aim for the green.