Across
- 2. Take part in an action or endeavor.
- 8. Occurring or done at once
- 9. An official document attesting a fact.
- 10. Produce immunity against a disease.
Down
- 1. Place something in the refrigerator
- 3. close, but not completely accurate
- 4. Guess a subject with no firm evidence.
- 5. Make or prove unsound or erroneous.
- 6. Reach a climax of highest development.
- 7. Recognize the full worth of.