Meaning of the word "doctor of philosophy" in English

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

doctor of philosophy

US /ˈdɑktər əv fɪˈlɑsəfi/
UK /ˈdɒktər əv fɪˈlɒsəfi/

Noun

the highest academic degree awarded by universities in a wide range of fields

Example:
She earned her Doctor of Philosophy in astrophysics.
He is currently pursuing his Doctor of Philosophy at Harvard University.