Pronunciation
Adjective
Positive |
Comparative |
Superlative |
- of or about being under the ground
- Underground water is drying up.
- secret or not well known
- The underground music scene is really interesting.
- Underground drug sales have increased over the last year.
Related words
Preposition
Preposition |
Noun
- The underground is a system of trains that runs mostly under the ground.
- Synonym: subway
- The London underground is a great way to move about the city.