At what point does a knife become a sword?

Related questions

1. Why do machetes have holes?
2. What is the longest sword?
3. Do I need a chef's knife and a Santoku?
4. Why do Santoku knives have dimples?
5. Should I carry a knife?
6. Can a katana cut through plate armor?
7. What is a Santoku Knife best used for?
8. What size knife is legal to carry?
9. Can I have a knife in my car?
10. How do knives cut?

Tags

1. #distance
2. #length
3. #typical
4. #blade
5. #start
6. #inches
7. #forehand
8. #yields
9. #longer
10. #using
11. #longest
12. #knife
13. #short
14. #elbow
15. #about
16. #technique
17. #change
18. #dagger
19. #sword
20. #wrist
21. #between