Defining reality

Answers.com

re·al·i·ty
n., pl. -ties.
  1. The quality or state of being actual or true.
  2. One, such as a person, an entity, or an event, that is actual: “the weight of history and political realities” (Benno C. Schmidt, Jr.).
  3. The totality of all things possessing actuality, existence, or essence.
  4. That which exists objectively and in fact: Your observations do not seem to be about reality
Wikipedia
Reality in everyday usage means "the state of things as they actually exist."[1] The term reality, in its widest sense, includes everything that is, whether it is observable, comprehensible, or self-contradictory by science, philosophy, or any other system of analysis. Reality in this sense may include both being and nothingness, whereas existence is often restricted to being (compare with nature).
Dictionary.com
1. the state or quality of being real.
2. resemblance to what is real.
3. a real thing or fact.
4. real things, facts, or events taken as a whole; state of affairs: the reality of the business world; vacationing to escape reality.
5. Philosophy.
a. something that exists independently of ideas concerning it.
b. something that exists independently of all other things and from which all other things derive.
6. something that is real.
7. something that constitutes a real or actual thing, as distinguished from something that is merely apparent.