Meaning of the word "razor sharp" in English

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

razor sharp

US /ˈreɪ.zər ʃɑːrp/
UK /ˈreɪ.zə ʃɑːp/

Adjective

1.

extremely sharp

Example:
The chef's knife was razor sharp, slicing through the tomato with ease.
Be careful with that knife; it's razor sharp.
2.

having a very keen intellect or quick wit

Example:
Her mind is razor sharp, always coming up with brilliant solutions.
He has a razor sharp wit that keeps everyone entertained.