How to Say “Hi Big Brother” in Japanese

お兄ちゃん、こんにちは
oniichan, konnichiwa
The phrase for "hi big brother" in Japanese is お兄ちゃん、こんにちは (oniichan, konnichiwa).
The phrase is a friendly greeting used when speaking to one's older brother. In Japanese culture, children often address their older brothers by their title rather than by their actual name.

Is there a formal and an informal way to say it?

お兄ちゃん、こんにちは is informal and carries a sense of closeness, typically used by younger siblings in a domestic or friendly setting.

How do you pronounce it?

oniichan, konnichiwa

Did you know?

  • While お兄ちゃん refers to a brother, it is also commonly used by girls or younger people to address a young man they find charming or attractive in a friendly, slightly cute way.
  • The word こんにちは used in the greeting was originally part of a longer sentence meaning 'today is a good day', which is why it is rarely used as a greeting between very close family members in private.
  • In many Japanese households, you might address an older brother as お兄ちゃん even if you are not biologically related, such as when speaking to a close family friend or a neighbor's son.

Examples in context

  • こんにちは、お兄さん。元気ですか?
    Hello, older brother. How are you?
  • ごきげんよう、お兄さま。今日は素晴らしい日ですね。
    Good day, honorable older brother. It's a wonderful day today, isn't it?
  • おはよう、兄ちゃん。昨日の試合、勝った?
    Good morning, big brother. Did you win yesterday's match?
  • どうも、お兄さん!今日もありがとう。
    Hey, older brother! Thanks again for today.
  • お兄ちゃん、こんにちは!元気?
    Onii-chan, konnichiwa! Genki?
    Hi big brother! How are you?
  • あ、お兄ちゃん、こんにちは。
    A, onii-chan, konnichiwa.
    Oh, hi big brother.

Example conversation

Misaki sees her brother Youta in the living room.

  1. 美咲 Misaki

    お兄ちゃん、こんにちは!
    Oniichan, konnichiwa!
    Hi big brother!
  2. 陽太 Yota

    美咲、こんにちは。
    Misaki, konnichiwa.
    Hi Misaki.
  3. 美咲 Misaki

    一緒に遊びに行こうよ。
    Issho ni asobi ni ikou yo.
    Let's go out and play together.
  4. 陽太 Yota

    いいよ。行こうか。
    Ii yo. Ikou ka.
    Okay. Shall we go?
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Sophie Avery
Sophie AveryHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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