なお
please note, additionally; still
Main information。なお、additional note。 · なお + still
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At the start of a sentence, なお adds a supplementary note: 会議は三時からです。なお、資料は各自で印刷してください, "the meeting starts at three. Please note that you should print your own copy of the documents".
It's typical of announcements, emails and notices, introducing the practical details that follow the main message: parking, deadlines, what to bring.
Inside a sentence, なお is a formal "still": 薬を飲んだが、なお熱が下がらない, "I took medicine, but my fever still won't go down". なおさら means "all the more".
Compare ただし (a condition or exception) and もっとも (a personal reservation). なお simply adds information.
Examples
会議は三時からです。なお、資料は各自で印刷してください。
The meeting starts at three. Please note that you should print your own copy of the documents.
申し込みは今月末までです。なお、定員になり次第締め切ります。
Applications close at the end of this month. Note that we'll close early if all places are filled.
薬を飲んだが、なお熱が下がらない。
I took medicine, but my fever still won't go down.
参加費は無料です。なお、駐車場はありません。
Participation is free. Please note there's no car park.
休めば治ると思ったが、なお痛みが続いている。
I thought rest would cure it, but the pain is still there.