Meaning of the word overachiever in English

What does overachiever mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

overachiever

US /ˌoʊ.vər.əˈtʃiː.vər/
UK /ˌəʊvərəˈtʃiːvər/

Noun

a person who achieves more than is expected or who works harder than is necessary

Example:
She's always been an overachiever, getting top grades in every subject.
Being an overachiever can sometimes lead to burnout.