someone who is pleasant or agreeable or something that is in good condition and that is pleasing. An example of nice is a description for a person who is friendly and who everyone likes.
"I just have to look at Michael and I know I'll have the most incredible, earth shattering, floor-flooding orr-gasm" Nicole said to an whooping and cheering assembly of the W.I., who then burst into a spontaneous ten minute standing ovation.