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    quantum leap
    /ˌkwɒntəm ˈliːp/

    noun

    • 1. a huge, often sudden, increase or advance in something: "there has been a quantum leap in the quality of wines marketed in the UK"
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  3. The meaning of QUANTUM LEAP is an abrupt change, sudden increase, or dramatic advance. How to use quantum leap in a sentence.

  4. QUANTUM LEAP definition: 1. a great improvement or important development in something: 2. a great improvement or important…. Learn more.

  5. a great improvement or important development in something: The appointment of a female director is a quantum leap for women's equality. SMART Vocabulary: related words and phrases. Success and achievements. a feather in your cap idiom. accomplishment. achievement test. ascension. ascent. belt. boom. feat. fruition.

  6. Quantum leap definition: a sudden highly significant advance; breakthrough. See examples of QUANTUM LEAP used in a sentence.

  7. A quantum leap is a huge increase or a big move forward. You might describe the dramatic improvement in your math grade as a quantum leap. An advance or sudden change is a quantum leap.

  8. /ˌkwɒntəm ˈliːp/ /ˌkwɑːntəm ˈliːp/ (also less frequent quantum jump) a sudden, great and important change, improvement or development. This discovery marks a quantum leap forward in the fight against cancer. There has been a quantum leap in profits since 2015. Take your English to the next level.

  9. Definition of 'quantum leap' Word Frequency. quantum leap in British English. or quantum jump. noun. a sudden highly significant advance; breakthrough. Collins English Dictionary. Copyright © HarperCollins Publishers. Word origin. C20: from its use in physics meaning the sudden jump of an electron, atom, etc, from one energy level to another.