yǎn​tǐ

bunker

掩体 掩體 yǎn​tǐ
bunker noun
a shelter or fortification used in military operations to protect personnel or equipment; blindage

They stayed in the bunker for several hours until the attack was over.

Frequency

Movie subtitles
2.83 per million appears in 1% of films
Written text
1.31 per million

Sources