🇰🇷Korean Source WordCode: KO

터널 굴착

Pronunciation / Transliteration: teoneol gulchak

🇬🇧 Direct English Meaning:
Tunnelling/ˈtʌn.əl.ɪŋ/
nounverbCEFR B2 (Upper)Top #8500 frequency
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🇰🇷 Example Sentence in Korean:

"산악 지역을 통과하는 터널 굴착 작업이 완료되었습니다."

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The act or process of digging or constructing a subterranean passage or tunnel.

    "The extensive tunnelling beneath the city required advanced geotechnical engineering."
  2. 2

    In physics and quantum mechanics, the quantum phenomenon where a particle penetrates through a potential energy barrier that is higher than the particle's kinetic energy.

    "Quantum tunnelling is an essential mechanism for nuclear fusion in the core of stars."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Middle English word 'tonel' (meaning a cask or barrel), originating via Old French from Germanic roots. By the 17th century, the meaning extended to describe arched subterranean passages, and eventually evolved into the modern continuous process of excavating underground structures.

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