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Big gun
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Meaning
Noun
●
In Military & Artillery:
A large
artillery
gun
or one of the largest-caliber
naval
guns
(as on a battleship).
●
A person, group,
thing
, or
course of action
that is
powerful
,
influential
, or
particularly
effective.
Sourced from
Wiktionary
Synonyms
Bigwig
Great Gun
Big Shot
Important Person
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