Meaning of the word "quantum leap" in English

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

quantum leap

US /ˈkwɑn.təm liːp/
UK /ˈkwɑn.təm liːp/
"quantum leap" picture

Noun

1.

a sudden, significant, and often unexpected advance or improvement

Example:
The new technology represents a quantum leap in computing power.
Her performance was a quantum leap from her previous attempts.
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