Meaning of the word "graduate student" in English

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

graduate student

US /ˈɡrædʒ.u.ət ˈstuː.dənt/
UK /ˈɡrædʒ.u.ət ˈstjuː.dənt/

Noun

a student who is studying for a master's degree or a PhD

Example:
She is a graduate student in astrophysics.
Many graduate students also work as teaching assistants.