A word used to confirm your subscription to the Urban Word of the Day by Urban Dictionary. It is a pronunciation of a less edgy syllable form of alright.
Retardedboy: "Unggh abbuba lallou ikki uoo."
Black guy: "Aight."
Originally referring to the australian way to say 'alrite', meanwhile gotten more and more popular in the US too. Especially introduced to the US by african-americans and surfer-dudes.
American: Dude, u gonna come surfing the mavs later?
Aussie: Aight mate, sounds like a plan.
From the word alright. The term 'alright', as well as meaning to 'be alright' can also be interpreted as another way of saying 'hello' or 'how are you?' (esp. in Ireland)
A (walking along the street): "Aight!"
B (on the other side of the road): "Aight Boyo, any craic?"