Family Words in Japanese

Japanese has two words for every family member. Which one you use depends on whose family you are talking about, and there is no way around learning both.

Updated 2026-08-08

Your own family

母 はは haha

HAH-hah

my mother

父 ちち chichi

CHEE-chee

my father

姉 あね ane

AH-neh

my older sister

妹 いもうと imōto

ee-MOH-toh

my younger sister

兄 あに ani

AH-nee

my older brother

弟 おとうと otōto

oh-TOH-toh

my younger brother

祖母 そぼ sobo

SOH-boh

my grandmother

祖父 そふ sofu

SOH-foo

my grandfather

Someone else's family, and how children address their own

お母さん おかあさん okāsan

oh-KAH-sahn

mother

お父さん おとうさん otōsan

oh-TOH-sahn

father

お姉さん おねえさん onēsan

oh-NEH-sahn

older sister

お兄さん おにいさん onīsan

oh-NEE-sahn

older brother

おばあさん obāsan

oh-BAH-sahn

grandmother

おじいさん ojīsan

oh-JEE-sahn

grandfather

The rest of the family

家族 かぞく kazoku

KAH-zoh-koo

family

両親 りょうしん ryōshin

RYOH-sheen

parents

子供 こども kodomo

koh-DOH-moh

child

娘 むすめ musume

moo-SOO-meh

daughter

息子 むすこ musuko

moo-SOO-koh

son

妻 つま tsuma

TSOO-mah

my wife

奥さん okusan for someone else's wife

夫 おっと otto

OHT-toh

my husband

ご主人 goshujin for someone else's husband

Two sets of words, and no word for sister

Talking about your own family to an outsider, use the plain set: haha, chichi, ane. Talking about someone else's family, or addressing your own mother directly, use the polite set: okāsan, otōsan, onēsan.

Saying watashi no okāsan about your own mother to a stranger is the classic learner slip. It is not rude exactly, but it sounds like you are honouring your own family, which Japanese modesty avoids.

There is no general word for sister or brother. Older and younger are entirely different words, and you have to know which before you can say it at all.

The o- at the front and the -san at the end are the politeness. Strip them and you get the plain forms, which is why the two sets look related once you see the pattern.

  • 母は先生です。My mother is a teacher.
  • お母さんは元気ですか。How is your mother?

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