Crossword clues for the word: THUN The word THUN has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for THUN Showing 1 to 4 of 4 results Clue(s) Lake —, body of water in central Switzerland formed by a widening of the Aare River Lake in the Alps. Resort at foot of Bernese Alps. Swiss resort town.