nice and (something)

A construction used to emphasize how nice something is because of a particular quality that one names. I love your new house! It's nice and bright inside! Ah, this lemonade is nice and cold—just the thing for such a hot day.

nice and some quality

[being or having] enough of some quality; adequately; sufficiently. It is nice and cool this evening. I think your steak is nice and done now, just the way you like it.

ˌnice and ˈpeaceful, ˈcomfortable, ˈwarm, etc.

pleasantly peaceful, etc: Sit by the fire. It’s nice and warm there. ♢ Drink your coffee while it’s nice and hot.