Crossword clues for the word: GROUNDZERO The word GROUNDZERO has appeared as an answer to at least 10 crossword clues on different crossword puzzles. Crossword clues for GROUNDZERO Showing 1 to 10 of 10 results Clue(s) Fresh start before love is turned to dust? Less polite wildly unconventional = epicenter Most elementary level Nuclear-explosion hot spot Site of the former World Trade Center in the wake of the 9/11 attacks: 2 wds. Target of bomb: pulverised zone, with rock sent skywards The very beginning Very beginning Where street musicians play patriotic songs Where the 9/11 Memorial is