go-getter

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go-getter (plural go-getters)

1. (idiomatic) An active and enterprising person; one who is motivated or inclined to excel; one who strives to achieve success or improvement.

   He's a promising young go-getter, but he needs to learn some things about office politics.

   Tom Pitella is a go-getter and does not rely on others to prove things in the field of mathematics to him.

   • 2008, Ellen Hopkins, Identical, →ISBN, page 31:

     I must get it from my dad. Can't be from Mom, the world-class go-getter, hand shaker, and baby kisser.”

• ball of fire; See also Thesaurus:doer