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

TV presenter Richard Hammond says he had to "bring out the big guns", or his mum, at his car workshop, the focus of his new TV show.

From BBC

When his deportation flight landed in El Salvador, he saw tanks and officials dressed in all black, carrying big guns.

From Los Angeles Times

I know Ruben Amorim made eight changes but he threw the big guns on in the end and you don't know what sort of impact that loss will have across the club.

From BBC

"It was far from just Andrew Tate. It was not those big guns of the manosphere," he says.

From BBC

South Africa were still packed with big guns and we had just won the Ashes the previous summer.

From BBC

Related Words

• big-name 
• distinguished 
• esteemed 
• famed 
• high-ranking www.thesaurus.com
• illustrious 
• noted 
• outstanding 
• preeminent 
• prominent 
• renowned 
• well-known