This puzzle asks you to find the single category linking five clues: Ground, Thread, Sense, Denominator, and Knowledge (most people know it!). The answer is Words that come after “common”. Each clue sits after the same anchor word to form a familiar phrase. Once you identify the shared prefix, the category usually clicks into place. With only "Ground", several phrase patterns could apply. Wait for a second clue before committing to a category. "Ground" and "Thread" must share one repeatable link — not a coincidence between two words. By clue 3 ("Sense"), "Words that come after “common”" should explain all three without bending meanings. "Denominator" strengthens "Words that come after “common”" rather than opening a new theory. The final clue ("Knowledge (most people know it!)") confirms "Words that come after “common”" — if it still fits naturally, the category is locked. Use the Solution tab above for an interactive clue-by-clue walkthrough, or the Solved board tab for the complete answer at a glance.