JLPT N3
わけだ
That's why / No wonder
Structure
Plain form わけだ
How it works
This grammar point is used to express a natural conclusion or a logical result based on a given set of circumstances. It often translates to 'that's why,' 'no wonder,' or 'it stands to reason that.' It is frequently used when a speaker has just understood the reason behind a situation.
Examples
彼は日本に5年も住んでいるから、日本語が上手なわけだ。
He has lived in Japan for five years, so it's no wonder his Japanese is good.
エアコンが切れている。暑いわけだ。
The air conditioner is off. No wonder it's hot.
20パーセント引きということは、1000円の物は800円になるわけですね。
A 20 percent discount means a 1000 yen item becomes 800 yen, right?
Common mistakes
Do not confuse 'わけだ' (logical conclusion) with 'わけではない' (it doesn't mean that/not necessarily), which is used for partial negation.
Tip
Think of 'わけだ' as the 'Aha!' moment. Use it when you've just connected the dots between a cause and an effect.
More JLPT N3 grammar
See わけだ in real Japanese
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