Crossword clues for the word: LSS The word LSS has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for LSS Showing 1 to 6 of 6 results Clue(s) Beach rescue post: Abbr. Coast Guard abbreviation. Lifeguards' group. Lifesavers' group. Sea-rescue branch: Abbr. U.S. sea-rescue group