Smooth tunnel Synonyms

Definitions for Smooth


  • (adjective) having or showing very polished and worldly manners
  • (adjective) involving minimal difficulty or effort
  • (adjective) having a surface without bends, breaks, or irregularities

ST abbreviation

ST is an abbreviation for Smooth Tunnel
What does ST stand for?
ST stands for "Smooth Tunnel"

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