Access: The method or possibility of getting near to a place or person.
NOUN. That person gives me access to his office
Civil war: A war fough by different groups of people living in the same country.
NOUN. There have been many civil wars lately for power.
Diversity: The fact of many different types of things or people being included in something, a range of different thing or people.
NOUN. There is a diversity of people all over the world.