Meaning of the word "key point" in English

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

key point

US /ˈkiː ˌpɔɪnt/
UK /ˈkiː ˌpɔɪnt/

Noun

an essential or most important idea, fact, or piece of information

Example:
The speaker emphasized the key point of his argument.
Make sure you understand all the key points before the exam.