IPA: /ˈstʌdiər/
KK: /ˈstʌdiər/
A person who learns about a subject, often by reading or attending classes.
As a studier, she spends hours in the library every week.
Studier → The word is formed from "study" (from Latin "studium", meaning zeal or application) and "-er" (meaning a person who). A studier is a person who engages in study or learning.
Think of someone who has a lot of 'zeal' ('studium') for learning — that's why a studier is someone who studies.