contend

contend

to compete or struggle against

Example: In the North-East of the country, rival separatist groups are contending for power.

to argue or strongly assert that something is true

Example: Bible literalists contend that the earth is only 6000 years old.

to contend with — to have to deal with an unpleasant thing

Example: You will have to contend with official apathy if you try to educate the public about the bureaucracy.