Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
subsurface | No | Yes | No | No |
subterranean | No | Yes | No | No |
subsurface (adjective) | subterranean (adjective) |
---|---|
beneath the surface | lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed) |
being or operating under the surface of the earth |