Underwater tunnel Synonyms

Definitions for Underwater


  • (adjective) living , lying , or occurring below the surface of the water
  • (adjective) beneath the surface of the water
  • (adjective) growing or remaining under water

Definitions for Tunnel


  • (noun) a passageway through or under something, usually underground (especially one for trains or cars)
  • (noun) a hole made by an animal , usually for shelter
  • (verb) move through by or as by digging