Across
- 1. - A single item or thing
- 2. - Upper arm muscle with two heads
- 4. - One of a kind
- 7. - Tool used to view distant objects with both eyes
- 9. - Vehicle with two wheels
- 11. - Happening twice a year
- 12. - One voice or sound heard together
- 13. - Able to speak two languages
Down
- 1. - Made up of one cell
- 3. - Made into one
- 5. - Everything regarded as a single whole
- 6. - Vehicle with one wheel
- 8. - Occurring every two months
- 10. - Lens with two focal lengths