This is the 319th most frequent Korean word.
여자
Woman; female.
In this sentence, '여자' means 'woman' and refers to the general identity or societal role of a female individual.
그녀는 똑똑한 여자가 되고 싶어 한다.
She wants to become a smart woman.
Here, '여자' precedes '친구', modifying it to mean 'female friend', which in this context implies 'girlfriend'.
여자 친구와 함께 영화를 보러 갔어요.
I went to see a movie with my girlfriend.
'여자' is used as an adjective to describe the noun '팀', specifying it as a 'women's team'.