This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. One who achieves; a winner.

n. One who achieves; a winner.

n. One who achieves or accomplishes.

n. a person with a record of successes

"The joy of finishing a novel, being in that 10% an important thing for a former over-achiever, is short-lived for me."

person    mortal    individual    someone    soul    somebody   

great    sleeper    highflyer    natural    first lady    highflier   

winner   

Beaver    Cheever    Seaver    beaver    believer    cleaver    dever    fever    griever    keever   

mentalist    storm-god    experiencer    replenisher    enjoyer    fm    propagator    doer    half-share    sheik