say it: SUHB-sur-fuhs
subsurface is an adjective meaning "beneath the surface". It is pronounced /ˈsʌbˌsɝfəs/ — SUHB-sur-fuhs. It carries one recorded sense.
beneath the surface
“subsurface materials of the moon”
Definitions, synonyms and semantic relations for subsurface come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.