A sentence-final particle expressing emphasis, emotion, or seeking agreement ("isn't it?"), often used in feminine speech.
今日も寒いわね。
It's cold again today, isn't it?
あの映画、面白かったわねぇ。
That movie was really interesting, wasn't it?
本当に行くしかないわね。
We really have no choice but to go, right?
子どもがもう寝たわねー。
The children are already asleep, huh.