Across
- 3. Noun-act of working jointly
- 4. Noun-good luck in making unexpected and fortunate discoveries
- 6. Noun-the spreading of a disease (especially cancer) to another part of the body
Down
- 1. Adj-recurring again and again
- 2. Noun-the quality of being subject to variation
- 5. Verb-destroy completely, as if down to the roots
