tunneling

1. The act of burrowing a tunnel. (countable, uncountable)
2. The practice of exploring tunnel. (countable, uncountable)
3. The quantum mechanical passing of a particle through an energy barrier. (countable, uncountable)
4. A type of fraud where assets and profits are transferred out of firms for the benefit of those who control them. (countable, uncountable)
5. A feature of the file system that allows files to preserve certain properties, such as creation date, even after being deleted and recreated. (countable, uncountable)

Plural tunnelings