IPA: /ˈskuːlɡɜːrl/
KK: /skul-gurl/
A young female student who goes to school.
The schoolgirl carried her books to class every day.
Schoolgirl → It is formed from "school" (from Old English *scolu*, meaning a place of learning) and "girl" (from Old English *gyrela*, meaning a young female). The word "schoolgirl" refers to a young female student attending a place of learning.
Think of a 'place of learning' ('school') and a 'young female' ('girl') — together, they describe a young female student.
No commonly confused words.