同じ (onaji): How to Say “Same” in Japanese

Yuka

同じ is one of the most useful words in Japanese — and it has some interesting quirks that learners often miss. Let’s break it down!

What Does 同じ Mean?

同じ (onaji) means “same” or “identical.” Unlike most Japanese adjectives, it does NOT take な before a noun — it directly modifies:

• 同じ学校に通っている。 — We go to the same school.
• 同じ色のシャツを持っている。 — I have a shirt the same color.
• 二人は同じ誕生日だ。 — The two have the same birthday.

同じ vs 同じような

同じ = exactly the same. 同じような = similar, like the same kind:

• 同じ問題が起きた。 — The exact same problem occurred.
• 同じような問題が起きた。 — A similar problem occurred.

Rei

So 同じ doesn’t use な like other na-adjectives?

Yuka

Right! 同じ is an exception — you say 同じ本 not 同じな本. This trips up a lot of learners!

Common Patterns

Quick Quiz

Fill in the blank: “She and I have the same opinion.”

Answer: 彼女と私は同じ意見だ。

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