big gun

noun

, Slang.

1. an influential or important person or thing:

   He's a big gun in science.

big gun

noun

1. informal.
   an important or influential person

Example Sentences

This is a big change to last winter when big guns stayed silent for most of the day.

From BBC

Marques Coleman, 14, said he saw the attacker holding a "big gun" just before the shooting began.

From BBC

And it did not bring out its big guns.

From BBC

Horses were important because they also pulled the big guns, the ammunition wagons, and the wheeled field kitchens that cooked on the march.

From Literature

Then get the big guns off for the big game against Luton for the weekend.

From BBC

Related Words

• captain
• commander
• director
• head
• leader
• manager
• ruler
• superintendent
• supervisor