IPA: /aʊtəˈtʃiːv/
KK: /aʊtəˈtʃiv/
To achieve more than someone else or to do better than expected.
She managed to outachieve her classmates in the final exams.
Past: outachieved
Past Participle: outachieved
Outachieve → It is formed from "out-" (meaning beyond or surpassing) and "achieve" (from Old French *achever*, meaning to complete or bring to a conclusion). The word "outachieve" means to surpass or achieve more than someone or something else.
Think of going 'beyond' ('out-') what you have 'completed' ('achieve') — that's how you remember that outachieve means to surpass in achievement.