How to Say “Grandpa” in Japanese Slang

じいちゃん
jiichancasual, affectionate
A casual, affectionate word for "grandpa" in Japanese is じいちゃん (jiichan). The more neutral form is おじいちゃん (ojiichan). It is also called じっちゃん (jicchan) and じじい (jijii).
Meaning: grandfather, casual forms (noun)

Ways to say it

“grandpa” in Japanese
Japanese Romanization Note
じいちゃん jiichan casual, affectionate
じっちゃん jicchan casual, rural, warm
じじい jijii rude, insulting

じいちゃん (jiichan) is what grandchildren often say at home. じっちゃん (jicchan) has a similar warm tone. Add お for a gentler form, おじいちゃん (ojiichan).

Which one should you use?

The polite word is 祖父 (sofu) for your own grandfather, or おじいさん (ojiisan) for somebody else's.

What mistakes should you avoid?

Avoid じじい (jijii). Said about an old man, it is a rude word like "old geezer". Among family it can also be a rough joke, but it is not safe for outsiders.

Did you know?

  • In Japanese, the word for "grandma" is built in the same way, as in ばあちゃん (baachan).

Examples in context

  • じいちゃん、遊びに来たよ。
    Jiichan, asobi ni kita yo.
    Grandpa, I came to visit.
  • おじいちゃんの家に行く。
    Ojiichan no ie ni iku.
    I am going to Grandpa's house.
  • 祖父は元気です。
    Sofu wa genki desu.
    My grandfather is well.

Example conversation

Kenji visits Grandpa in the countryside.

  1. Kenji

    じいちゃん、ただいま!
    Jiichan, tadaima!
    Grandpa, I am home!
  2. Grandpa

    おかえり。大きくなったな。
    Okaeri. Ookiku natta na.
    Welcome back. You have grown.
  3. Kenji

    お土産があるよ。
    Omiyage ga aru yo.
    I have a souvenir.
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Alma Suzanne
Alma SuzanneHelp 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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