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ENGLISH DICTIONARY

Noun
Pronunciation: /ˈbɪɡ.wɪɡ/
Pronunciation (ENPR): bĭgʹwĭg

Definition 1:
• A person of importance in a group or organization.
Example: The company bigwig is gathering his staff together for a meeting today.
Wiktionary-listed synonyms: big cheese, VIP, baron, big enchilada, big gun, big kahuna, big man, big name, big noise, big shot, bigwig, big wheel, boss, grand poobah, head honcho, heavy hitter, heavyweight, high muckamuck, high muckety-muck, king of all one surveys, king of the castle, king of the hill, kingpin, macher, mayor, muckamuck, muckety muck, mugwump, numero uno, panjandrum, poobah, rooster, somebody, top banana, top boy, top cat, top dog, top gun, very important person, wheel
Labels: informal

Source and attribution
Wiktionary contributors, via Kaikki/Wiktextract. Derived from Wiktionary; CC BY-SA and GFDL terms apply. Source: https://en.wiktionary.org/wiki/bigwig