big gun
noun
Forms big guns
- noun (military) A large artillery gun or one of the largest-caliber naval guns (as on a battleship).
- noun (idiomatic, by extension, chiefly in the plural) A person, group, thing, or course of action that is powerful, influential, or particularly effective.
- noun (surfing) A large surfboard used to ride very large, powerful waves.
Synonyms
great gun big shot bigwig baron big cheese big enchilada big kahuna big man big name big noise big wheel boss grand poobah head honcho heavy hitter heavyweight high muckamuck high muckety-muck king of all one surveys king of the castle big deal big fish
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “big gun”, CC BY-SA 4.0. Details