Big gun and Exec

Big gun noun - One of high position or importance within a group.

Exec and big gun are semantically related. in boss topic. In some cases you can use "Exec" instead a noun phrase "Big gun", when it comes to topics like manager over other employees.

Exec noun - A person who manages or directs something.

Big gun and exec are semantically related. Sometimes you can use "Big gun" instead a noun "Exec".