1. noun /ˈvɪʒ(ə)n/
a) The sense or ability of sight.
He tried drinking from the pool of water, but realized it was only a vision.
b) Something imaginary one thinks one sees.
He worked tirelessly toward his vision of world peace.
Syn: sight, eyesight, view, perception, apparition, hallucination, mirage, dream, desire, aspiration, fantasy
2. verb /ˈvɪʒ(ə)n/
To imagine something as if it were to be true.
Wikipedia foundation.