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How to Say ‘I see.’ in Japanese

そうなんだ。

sou na n da

[soh nah n dah]

💬 Usage Tip: [そうなんだ] is a casual, friendly reaction meaning “I see” or “oh, really.” It shows understanding and interest.

🇯🇵 In Japan: Japanese conversations often include many small listener reactions. Using [そうなんだ] well can make you sound more natural and supportive.

Phrase Breakdown

そう

sou

[soh]

I see; really

A common response meaning I see, really, or is that so.

Example

そうなんだ。

I see.

なんだ

na n da

is that so; I see

Explains or confirms information with a casual, conversational tone.

Example

そうなんだ。

Oh, I see.

Words in this phrase

na

[nah]

part of explanatory expression

This syllable is part of なんだ, a casual explanatory expression.

Example

そうなんだ。

I see, that's how it is.

n

[n]

part of explanatory expression

This syllable is part of なんだ, a casual explanatory expression.

Example

そうなんだ。

I see, that's how it is.

da

[dah]

is; it is

Casual form of です used in plain speech.

Example

そうなんだ。

Oh, I see.

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