otoko-vs-onna

How do you say “man” and “woman” in Japanese? 男 (otoko) and 女 (onna) are the most basic words — but Japanese has a rich system of gender-related vocabulary with different words for different registers, relationships, and contexts. Knowing which word to use and when is important for speaking naturally. This guide covers the full picture.

Yuka

Rei, I’ve seen otoko and onna so many times but I always second-guess myself. Help!

Rei

Don’t worry — this is one of the most common points of confusion for English speakers. Let me clear it up once and for all!

At a Glance

Both 男 and 女 are nouns. They are the base words for “man” and “woman” in Japanese. They appear both on their own and as components in many important compound words.

What Does 男 (Otoko) Mean?

男 (おとこ) means man or male — an adult human male. It is used in casual and polite speech alike. In addition to referring to a man directly, 男 appears in many set phrases and compounds related to masculinity, men’s spaces, and male-gendered roles.

The kanji 男 combines 田 (ta = rice field) and 力 (chikara = strength/power), historically suggesting “one who works in the fields” — now simply meaning “man/male.”

Example 1

あの男ってホントに女好きだよ！
Ano otoko tte honto ni onnazuki da yo!
That guy is such a womanizer!

Example 2

彼は世界最強の男です。
Kare wa sekai saikyō no otoko desu.
He’s the strongest man in the world.

Example 3

男らしいですね。
Otoko rashii desu ne.
That’s very manly / masculine.

Example 4

それは男の夢だよ。
Sore wa otoko no yume da yo.
That’s every man’s dream.

What Does 女 (Onna) Mean?

女 (おんな) means woman or female — an adult human female. Like 男, it is used neutrally in both speech and writing. The word 女 also appears in many set phrases and compounds related to femininity and women’s spaces.

The kanji 女 is a pictograph of a person kneeling with hands folded — an ancient ideograph. Today it simply means “woman/female.”

Example 1

お姉ちゃんは男にも女にももてるよ。
Onēchan wa otoko ni mo onna ni mo moteru yo.
My sister is popular among both men and women.

Example 2

彼女は魔性の女です。
Kanojo wa mashō no onna desu.
She’s a femme fatale.

Example 3

女らしいですね。
Onna rashii desu ne.
That’s very feminine / womanly.

Example 4

それは女の夢だよ。
Sore wa onna no yume da yo.
That’s every woman’s dream.

Otoko vs. Onna: Full Vocabulary Map

Japanese has many words for “man” and “woman” that vary by age, formality, and context. Here is the full picture:

Key distinction — 男/女 vs. 男性/女性:

In formal writing, announcements, or official contexts, 男性 (dansei) and 女性 (josei) are preferred over 男 and 女 alone, as they sound more respectful and professional.

Casual: あの男、かっこいいね。(That guy is cool.)
Formal: 男性のお客様、こちらへどうぞ。(Male guests, please come this way.)

Compound Words and Set Phrases

Decision Flowchart: Which Word to Use?

Are you referring to a male or female person?
              |
              Yes
              |
Is it a CHILD (under ~15)?
       |               |
      Yes              No
       |               |
男の子 / 女の子      Is the context FORMAL or OFFICIAL (document, announcement)?
(boy / girl)               |                    |
                          Yes                   No (casual conversation)
                           |                    |
                   男性 (dansei)            男 (otoko)
                   女性 (josei)             女 (onna)
                   = formal male/female     = casual man/woman

Register note: The suffix 〜らしい (rashii) added to 男 or 女 creates an adjective meaning “behaving like a man / woman” or “typically masculine / feminine.” This is a very natural, common expression in daily Japanese conversation.

もっと男らしくしなさい。
Motto otoko rashiku shinasai.
Be more manly!

女らしい動作だね。
Onna rashii dōsa da ne.
That’s a very feminine gesture.

Quick Quiz: Fill in the Blank

Choose 男 (otoko) or 女 (onna) — or their related forms — for each sentence. Answers below.

Q1. あの＿＿の子、かわいいね。
That _____ is cute. (referring to a girl)

Q2. 彼はとても＿＿らしい人です。
He is a very _____ person. (very manly)

Q3. ＿＿性のお客様はこちらのトイレをご利用ください。
_____ guests, please use this restroom. (formal, for women)

Q4. ＿＿女平等が大切だと思います。
I think _____ equality is important.

Q5. 彼は＿＿の夢を持っています。
He has a _____ dream. (a man’s dream)

Answers:

A1. 女 (女の子) — A girl (female child) → あの女の子、かわいいね。

A2. 男 (男らしい) — Manly (masculine quality) → 彼はとても男らしい人です。

A3. 女 (女性) — Formal context for women → 女性のお客様はこちらのトイレをご利用ください。

A4. 男 (男女) — 男女平等 is the set compound for “gender equality” → 男女平等が大切だと思います。

A5. 男 (男の) — A man’s dream (possessive) → 彼は男の夢を持っています。

Summary

男 and 女 are the foundation, but knowing when to upgrade to 男性/女性 — and how to use compounds like 男の子/女の子 and 男らしい/女らしい — will make your Japanese sound much more natural across all situations.

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