Jibun is a mirror: it shows the subject
Jibun is written with the kanji for self and part, and the closest English word is oneself. Think of it as a mirror hung inside the sentence. Whoever the sentence is about steps in front of it, and jibun shows that person. If the subject is I, jibun is myself. If the subject is Tanaka-san, jibun is Tanaka-san.
Because Japanese often leaves the subject unsaid, the mirror usually shows the speaker in statements and the listener in questions and requests. A teacher handing out a form says jibun no namae, and every student understands your own name.

| Japanese | Romaji | Meaning |
|---|---|---|
| 自分で作りました。 | Jibun de tsukurimashita. | I made it myself. |
| 自分の名前を書いてください。 | Jibun no namae o kaite kudasai. | Please write your own name. |
| 田中さんは自分の車で来ました。 | Tanaka-san wa jibun no kuruma de kimashita. | Tanaka-san came in his own car. |
| 自分で決めましたか。 | Jibun de kimemashita ka. | Did you decide that yourself? |
How jibun combines with particles
Jibun is a noun, so it takes particles like any other noun and nothing about it conjugates. What changes is the particle, and each particle gives a phrase worth learning as a unit.
| Phrase | Reading | Meaning and example use |
|---|---|---|
| 自分で | jibun de | By one's own effort: jibun de yarimasu, I'll do it myself |
| 自分の | jibun no | One's own: jibun no heya, my own room |
| 自分に | jibun ni | To or towards oneself: jibun ni kibishii, strict with oneself |
| 自分を | jibun o | Oneself as object: jibun o semeru, to blame oneself |
| 自分が | jibun ga | Oneself as the doer: jibun ga warui, I am the one at fault |
| 自分から | jibun kara | On one's own initiative: jibun kara ayamaru, to apologise first |
| 自分自身 | jibun-jishin | One's very self, emphatic |
Jibun de deserves a note. De marks the means by which something is done, as in basu de, by bus. So jibun de is literally by means of oneself: the tool that did the job was you.
Jibun de, jibun no, jibun ni in daily life
Picture a shared house on a Saturday morning. A parent is talking to a child, and later two housemates talk over coffee. All of these are sentences you can use from your first months of Japanese.
| Japanese | Romaji | Meaning |
|---|---|---|
| 自分のことは自分でしなさい。 | Jibun no koto wa jibun de shinasai. | Do your own things yourself. (Literally: as for the matters of self, do them by self.) |
| 大丈夫です。自分でやります。 | Daijōbu desu. Jibun de yarimasu. | It's all right. I'll do it myself. |
| これは自分で払います。 | Kore wa jibun de haraimasu. | I'll pay for this one myself. |
| 妹は自分に自信があります。 | Imōto wa jibun ni jishin ga arimasu. | My younger sister is confident. (Literally: has confidence in self.) |
| 自分を責めないでください。 | Jibun o semenaide kudasai. | Please don't blame yourself. |
| 自分へのご褒美にケーキを買いました。 | Jibun e no gohōbi ni kēki o kaimashita. | I bought a cake as a treat for myself. |
Notice what the second sentence does socially. Someone offers help, and jibun de yarimasu politely declines by saying the work will be done by your own hands. It is a useful phrase at a shop counter or an office printer.
Whose self? One word changed
When a sentence contains two people, jibun goes to the subject, not to the nearest noun. English speakers tend to read jibun as linked to whoever was mentioned last, and that is where misunderstandings begin. Compare the sentences in the table, which differ in one word each.
| Sentence | Reading | What it says |
|---|---|---|
| 田中さんは山田さんに自分の傘を貸しました。 | Tanaka-san wa Yamada-san ni jibun no kasa o kashimashita. | Tanaka-san lent Yamada-san an umbrella, and it was Tanaka-san's own |
| 田中さんは山田さんに彼の傘を貸しました。 | Tanaka-san wa Yamada-san ni kare no kasa o kashimashita. | The umbrella belongs to some man, most likely not Tanaka-san |
| 兄は自分の部屋で寝ています。 | Ani wa jibun no heya de nete imasu. | My brother is asleep in his own room |
| 兄は私の部屋で寝ています。 | Ani wa watashi no heya de nete imasu. | My brother is asleep in my room |
In the first pair, jibun no can only reflect the subject, Tanaka-san. Replacing it with kare no breaks the mirror: kare points outwards, so listeners look for a different man. This is why Japanese uses jibun no where English says his or her own, and why kare no and kanojo no are much rarer than his and her.
Beyond the basics: two people who could be the subject
The mirror rule says jibun reflects the subject. Some sentences have two candidates, and then jibun is truly ambiguous. The classic case is the causative. In haha wa otōto ni jibun no heya o sōji saseta, my mother made my younger brother clean, the mother is the grammatical subject, but the brother is the one who does the cleaning. Jibun no heya can be her room or his, and only context settles it.
The same happens with reported speech. In Mori-san wa Katō-san ga jibun o suisen shita to itta, Mori-san said that Katō-san recommended jibun, the word can reflect Mori-san, the subject of said, or Katō-san, the subject of recommended. Native speakers resolve this by context. When you are the one speaking, avoid the puzzle by using a name.
| Japanese | Romaji | Meaning |
|---|---|---|
| 母は弟に自分の部屋を掃除させました。 | Haha wa otōto ni jibun no heya o sōji sasemashita. | My mother made my brother clean her room, or his own room. |
| 母は弟に弟の部屋を掃除させました。 | Haha wa otōto ni otōto no heya o sōji sasemashita. | My mother made my brother clean his room. (unambiguous) |
Jibun as I, and jibun as you in Kansai
If the mirror normally faces the subject, a speaker can also simply hold it up to themselves. Jibun as a word for I sounds modest and a little stiff. You will hear it from athletes in interviews, from people in organisations with strict hierarchy, and from some reserved speakers, more often men. It avoids choosing between watashi, boku and ore, which a separate post on first-person pronouns covers.
In Kansai the mirror gets turned towards the listener, and jibun means you. This is casual and regional. It does not fit the core idea neatly, and it is honest to say so: it is simply a local habit, one that even speakers from other regions of Japan sometimes find confusing.
| Japanese | Romaji | Meaning |
|---|---|---|
| 自分は東京出身です。 | Jibun wa Tōkyō shusshin desu. | I'm from Tokyo. (modest, slightly stiff) |
| 自分がやります。 | Jibun ga yarimasu. | I'll do it. |
| 自分、どこ行くん? | Jibun, doko iku n? | Where are you off to? (Kansai, casual) |
| 自分、何歳なん? | Jibun, nansai nan? | How old are you? (Kansai, casual) |
How do you tell them apart? A statement with jibun wa or jibun ga and no other subject is I. A question aimed at you in a Kansai accent, with jibun followed by a pause, is you.
Jibun de versus hitori de, and jibun-jishin
Both jibun de and hitori de get translated as by myself, and they answer different questions. Jibun de answers who did the work: you, and not someone on your behalf. Hitori de answers how many people were there: one. A woman who assembles a bookshelf while her friends watch did it jibun de, not hitori de. A man who eats a convenience store lunch in the park eats hitori de, and nobody would say jibun de, because eating cannot be delegated.
Jibun-jishin is the emphatic neighbour. Use it when plain jibun would be too weak to carry the contrast, for example when saying that the problem lies in you and nowhere else.
| Japanese | Romaji | Meaning |
|---|---|---|
| 自分で行きました。 | Jibun de ikimashita. | I went in person. (I did not send someone else.) |
| 一人で行きました。 | Hitori de ikimashita. | I went alone. (Nobody came with me.) |
| 一人で住んでいます。 | Hitori de sunde imasu. | I live alone. |
| 自分自身の問題です。 | Jibun-jishin no mondai desu. | It's my very own problem. |
Set phrases built on jibun
Jibun appears in a family of fixed expressions, and the mirror is visible in each of them. Jibun-katte, selfish, is literally self plus one's own convenience: acting as if only your reflection were in the room. Jibun-rashii means like oneself, true to who you are. Jibun-nari ni means in one's own way, to the extent one can, and it is a modest way of describing your effort.
| Japanese | Romaji | Meaning |
|---|---|---|
| 自分勝手なことを言わないで。 | Jibun-katte na koto o iwanaide. | Don't say such selfish things. |
| 自分らしく生きたいです。 | Jibun-rashiku ikitai desu. | I want to live in a way that is true to myself. |
| 自分なりに頑張りました。 | Jibun-nari ni ganbarimashita. | I did my best in my own way. |
| 自分の意見を言ってください。 | Jibun no iken o itte kudasai. | Please give your own opinion. |
Common mistakes with jibun
The first mistake is doubling the pronoun: watashi wa watashi no heya o sōji shimashita. It comes straight from English I cleaned my room. It is understandable but sounds unnatural, as if two different people called watashi were involved. Say jibun no heya o sōji shimashita, or simply heya o sōji shimashita.
The second is jibun de for alone. Jibun de sunde imasu is wrong for I live alone, because living is not a task someone could do for you. Say hitori de sunde imasu.
The third is pointing jibun at the wrong person. Tanaka-san ni jibun no kasa o kaeshimashita does not mean I returned Tanaka-san's umbrella. The unstated subject is I, so jibun no kasa is my own umbrella. Say Tanaka-san ni kasa o kaeshimashita.
The fourth is jibun with a thing. Kono doa wa jibun de akimasu is wrong for this door opens by itself. A mirror needs someone to look into it, so jibun needs a subject with a mind. For objects, say jidō de akimasu, it opens automatically, or hitorideni akimasu, it opens of its own accord.
The fifth is borrowing jibun for you or I in the wrong setting. In a job interview, watashi is the safe word, and outside Kansai, calling a listener jibun may simply not be understood.
| Japanese | Romaji | Meaning |
|---|---|---|
| 自分の部屋を掃除しました。 | Jibun no heya o sōji shimashita. | I cleaned my room. |
| このドアは自動で開きます。 | Kono doa wa jidō de akimasu. | This door opens automatically. |

