Conflict

2. fighting between armed forces
3. row or commotion.
4. permission for something to happen
6. resistance or dissent, expressed in action or argument.
11. the action of interfering or the process of being interfered with
12. effort to act like someone
13. an instance of one moving object
14. an episode of irregular or unpremeditated fighting
15. fighting with people
18. competition for the same objective
19. the resistance that one surface or object encounters when moving over another.

1. irritating inconvenience.
4. heated disagreement.
5. the holding or expression of opinions at variance with those commonly or officially held.
7. a state of armed conflict between different countries or different groups within a country.
8. a rough or noisy fight
9. strong hostility.
10. meet (someone) unexpectedly.
16. a disagreement or argument
17. make great efforts to achieve or obtain something.