Definition, Meaning & Synonyms
tunnelling
noun
/ˈtʌn.əl.ɪŋ/

Definition
The process of digging a tunnel through the ground or a geological formation.

Examples
- The tunnelling operation took several months to complete.
- They used advanced technology in tunnelling to ensure safety and efficiency.
- Tunnelling under the river was a significant engineering challenge.

Meaning
Tunnelling refers to the technique of creating a passageway underground, often used in construction, mining, and transportation.

Synonyms
- digging
- boring
- excavation
- burrowing