Phrase guide
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noun
A secure subterranean facility designed for military operations and command during times of conflict or emergency, typically too deep to be reached by traditional bunker buster bombs.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: D.U.M.B.
Antonyms: none provided
History
No etymology was provided for this word.
