a big gun

a big gun/noise

(informal)

an important or powerful person in a group or organization She's a big gun in city politics.

Name	Pronounced	Usage
Shania	shə-NIE-ə	English (Modern)
Danka	-	Serbian, Slovak, Polish
Nessa (2)	-	Hebrew
Samir (2)	-	Indian, Hindi, Marathi, Bengali, Gujarati
Pualani	-	Hawaiian
Dimitrios	-	Greek