conflict

noun

1.
an open clash between two opposing groups (or individuals)
2.
opposition between two simultaneous but incompatible feelings
Derived from:
conflict
3.
a hostile meeting of opposing military forces in the course of a war
4.
a state of opposition between persons or ideas or interests
Derived from:
conflict
5.
an incompatibility of dates or events
Derived from:
conflict
6.
opposition in a work of drama or fiction between characters or forces (especially an opposition that motivates the development of the plot)
7.
a disagreement or argument about something important