expression
that's the way it is; yes; it is so
Sentence-final expression with falling intonation, used to assert or confirm something. Often associated with feminine or colloquial speech.
そうなの。
That's right.
これ、おいしいの？ — うん、おいしいなの。
Is this tasty? — Yeah, it's tasty.
expression
Sentence-final expression with rising intonation, used to ask for confirmation or express mild surprise. Often associated with feminine or colloquial speech.