N4 Expressing Multiple Reasons

~ので: meaning, usage and examples

~ので means: because..., ...so.

Updated 9 November 2026 · By the My Senpai team · Spotted a mistake? Tell us

Examples

1. 明日あしたは試験しけんがあるので、今日きょうは早はやく寝ねます。

   I have a test tomorrow, so I'll go to bed early today.

2. 雨あめが降ふっているので、傘かさを持もって行いきましょう。

   Since it's raining, let's take an umbrella.

3. 道みちが込こんでいるので、少すこし遅おくれます。

   The roads are busy, so I'll be a little late.

4. この部屋へやは静しずかなので、よく眠ねむれます。

   This room is quiet, so I can sleep well.

When to use it

ので gives a reason or cause: "because" or "so". Use it to explain why something happens or why you are doing something, and it is a common choice when you ask for permission, apologize or make a request politely: 用事ようじがあるので、早はやく帰かえってもいいですか. The reason comes first, then the result.

Nuance

Softer and more polite than から, because it presents the reason as a natural fact rather than the speaker's own argument. Good for work and with people you do not know well. In very polite speech, ます form can come before it: ありますので.

Compare

から sounds more personal and direct, and is stronger with orders and opinions: 危あぶないから、触さわるな. ので sounds objective: 危あぶないので、触さわらないでください. Only から can end a sentence after the fact as an answer: どうして？ 雨あめだから. Nouns need な: 雨あめなので (not 雨あめだので).

Tip: When asking a favor or giving an excuse at work, choose ので. It is the safer, softer choice.