reality-n; 4 Senses

Sense Number 1: the actual state of the world, not imagined or hypothetical

Commentary: REALITY[+state][+world][+actual][-hypothetical]
NOTE: refers to the overall state of the world, not a specific situation (Sense 2)
NOTE: usually in the singular, a bit marked in the plural.
NOTE: mostly occurs without a preceding determiner.

Would different universes imply that different life forms could be living in separate realties?
The philosophy professor asked the students how they could justify the reality of their existence.
For these mental patients, the line between fantasy and reality is blurred.

WordNet 3.0 Sense Numbers: 1, 3

Sense Number 2: an actual experience or situation confronting one

Commentary: REALITY[+event][+experience][+actual][-hypothetical]
NOTE: often occurs in the plural, always occurs with a preceding determiner

The reality of his divorce finally began to dawn on Bob.
The book describes the harsh realities of life in a farming community.
This law ignores the reality of the drug-smuggling situation.

WordNet 3.0 Sense Numbers: 2

Sense Number 3: having a lifelike quality

Commentary: REALITY[+quality][+lifelike]

The reality of the faces on the wax figures was unsettling.
That painter is known for the reality of his landscape details.

WordNet 3.0 Sense Numbers: 4

Sense Number 4: television entertainment featuring actual events of things

Commentary: REALITY[+entity][+symbolic][+information][+entertainment][+program][+television][+event][+actual]
NOTE: often occurs in a modifier position

Mary watches several reality shows on TV.
Reality is starting to get old, the networks are looking for new kinds of programming.

WordNet 0.0 Sense Numbers: 3