Beyond the boundaries and exceeding the limits of nice. Spoken with emphasis when describing something particularly awesome.

nice, but better in every way possible.
pronounciation: noyce

The cool way that aussies say the word nice.

a word that is like "nice" but with an Australian accent; used in high volume (mostly). Meant usually in congratulatory terms in many ways; sexual, social, educational etc.

better than nice, usually used to describe an action or idea, the o is normally elongated and exagerated to make it "noooooooooice"

"nice!", but said like a meathead for effect

When something's nice af. Usually said with added emphasis on the "o". Pronounced as 'No-ice".