Go-getter and Heavy hitter

Go-getter noun - An ambitious person who eagerly goes after what is desired.

Heavy hitter and go-getter are semantically related. In some cases you can use "Heavy hitter" instead a noun phrase "Go-getter".

Heavy hitter noun - One of high position or importance within a group.

Go-getter and heavy hitter are semantically related. Sometimes you can use "Go-getter" instead a noun phrase "Heavy hitter".