Across
- 1. the action of following
- 3. absolutely necessary or important
- 6. a first, typical or preliminary model of something
- 10. a new method
Down
- 2. strengthen or support
- 4. combine a number of things into a coherent whole
- 5. the repetition of a process
- 7. a way that produces or increases something
- 8. combine one thing with another
- 9. making small changes in particular