Meaning of the word "swot up on" in English

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

swot up on

US /swɑt ʌp ɑn/
UK /swɒt ʌp ɒn/

Phrasal Verb

to study something very hard, especially for an examination

Example:
I need to swot up on my history before the test.
She spent the whole weekend swotting up on biology.