Nouns

3. A relationship of mutual affection between people.
6. Any substance consumed to provide nutritional support for an organism.
7. A section or length of a written work.
9. The phenomena of the physical world, especially as distinct from humans.
11. A consequence or outcome of an action or event.
12. The study of past events, particularly in human affairs.
14. A room, group of rooms, or building in which someone may live or stay.
16. The regard that something is held to deserve; the importance, worth, or usefulness of something.
17. A system of communication used by a particular country or community.
18. A number of people or things that are located close together or are considered or treated as a unit.

1. A difficult situation or matter that needs to be dealt with.
2. The state or condition of being difficult.
4. A particular instance of personally doing, seeing, or feeling something.
5. A nation or geographic region.
8. A sentence worded or expressed so as to elicit information or request something.
10. A person whom one knows and with whom one has a bond of mutual affection, typically exclusive of familial relationships.
13. The matter from which a thing is or can be made.
14. The length of time that a person has lived or a thing has existed.
15. The customs, arts, social institutions, and achievements of a particular nation, people, or other social group.
17. Reasoning conducted or assessed according to strict principles of validity.