The Correct Japanese Translation of “Individual” is “Kojin” (孤人)

“Kojin” (個人) is not a translation of “Individual” — it is a uniquely Japanese concept.

1. The Problem

Since the Meiji era, kojin (個人) has been the established Japanese translation of “Individual.” But kojin (個人) and “Individual” rest on fundamentally different worldviews.

Kojin (個人) is a Japanese concept rooted in the worldview of self-other non-separation (jita hibunri, 自他非分離)
Individual is a Western concept rooted in the worldview of self-other separation (jita bunri, 自他分離)

Treating these two as the same word has been a source of philosophical confusion in Japanese. This essay argues that the accurate Japanese translation of “Individual” is “Kojin” (孤人) — literally, “the solitary person.”

2. Two Worldviews

2.1 Self-Other Non-Separation — The Japanese Worldview

The keynote of the Japanese worldview is self-other non-separation (jita hibunri, 自他非分離).

Self and other are not originally separate.

People and people, people and nature, exist within connection from the very beginning. Boundaries are ambiguous, mutually permeable. When Bashō said, “Learn about the pine from the pine itself,” there was no hard boundary between self and pine. When the mathematician Kiyoshi Oka wrote, “One’s heart communicates with others” and “One’s heart communicates with nature,” he was expressing the intuition of self-other non-separation.

In this worldview, a person exists within connection. Separation is not the default state — connection is.

2.2 Self-Other Separation — The Western Worldview

The modern Western worldview is based on self-other separation.

Descartes’ cogito ergo sum severed the thinking subject from the world, taking the isolated ego as the starting point. Leibniz’s monads “have no windows” — they are closed entities with no direct connection to others.

In this worldview, a person first exists in isolation. Separation is the default state, and connection is something constructed afterward.

“Individual” is a concept born from this worldview of self-other separation.

3. “Kojin” (個人) — A Concept Based on Non-Separation

3.1 The Origin of the Character “Ko” (個)

Breaking down the kanji 個:

亻 (ninben): the radical for “person”
固 (ko): hard, solid

“Ko” (個) literally means “the hard part of a person.”

3.2 Kojin as “The Hard Part Within Connection”

In the worldview of self-other non-separation, people exist within connection. This connection is soft, mutually permeable, with blurred boundaries.

Yet even within this connection, there are hard parts — something like a core that remains undissolved even as things blend and communicate. That is “ko” (個).

〜〜〜〜〜●〜〜〜〜〜●〜〜〜〜〜●〜〜〜〜〜
  connection  ko  connection  ko  connection  ko  connection

Kojin (個人) is a hard knot within a sea of connection.

Connection is the premise
Within it, there are hard parts (ko, 個)
Hardness does not negate connection — it is hard while being within connection

This is perfectly consistent with the philosophy of self-other non-separation. A person exists within connection. But they do not dissolve completely. Within connection, something remains solid — that is kojin (個人).

3.3 Kojin (個人) is Not a Translation but a Japanese Concept

Understood this way, kojin (個人) may have been coined as a translation of “Individual,” but its semantic content reflects the Japanese worldview of self-other non-separation. Connection as the premise, the hard part within it — this is fundamentally different from what “Individual” means.

The Meiji-era translators assigned the word kojin (個人) to translate “Individual.” But the power of kanji transformed the original concept into something shaped by the Japanese worldview. As a result, kojin (個人) became its own concept, rooted in self-other non-separation — distinct from “Individual.”

4. “Individual” — A Concept Based on Separation

4.1 Etymology

“Individual” derives from the Latin individuus.


in-	negative prefix (“not”)
dividuus	divisible (from dividere, “to divide”)
individuus	indivisible

“That which cannot be divided further” — this is the original meaning of “Individual.”

4.2 Separation as the Premise of Division

The critical point is that “Individual” presupposes division.

To divide, the world must first be sundered. There is a whole; it is broken into parts; the process continues until we reach the smallest unit that cannot be broken further — the “Individual” is the endpoint of this process.

World (whole)
  ↓ divide
Groups / Society
  ↓ divide
Family / Community
  ↓ divide
Individual (cannot be divided further)

The starting point of this thinking is separation. The world is sundered; it can be divided; what remains at the end, indivisible — that is the “Individual.”

4.3 The Solitude of the Individual

The “Individual” is essentially solitary.

A single entity remaining after all division. Cut off from others, unable to be divided further. Connection is not a premise but something constructed afterward through social contracts and agreements.

Hobbes’ “war of all against all” departs from the premise that Individuals are inherently separate from one another. Locke’s social contract theory also begins with isolated Individuals who form society through contract.

In the world of the “Individual,” solitude comes first, and connection comes after.

5. “Kojin” (孤人) — The Accurate Translation of “Individual”

5.1 The Origin of the Character “Ko” (孤)

Breaking down the kanji 孤:

孒 (ketsu): alone, a small child
瓜 (uri): a melon separated from its vine

The original meaning of 孤 is a melon severed from its vine — an entity cut off from the whole, standing alone.

5.2 The Correspondence Between “Individual” and “Kojin” (孤人)

	Individual	Kojin (孤人)
Worldview	Self-other separation	Ko (孤, solitary) = separation as premise
Starting point	An isolated existence	A solitary person
Connection	Constructed afterward	Not implied
Etymological structure	The smallest unit at the end of division	A melon severed from its vine

An “Individual” is a solitary entity remaining at the end of division in a world of self-other separation. “Kojin” (孤人) expresses exactly this solitude — a person standing apart from others, alone.

5.3 The Precision of “Ko” (孤)

The character 孤 carries the following meanings:

Being alone: separated from others
Severed from the vine: disconnected from the whole
Carrying loneliness: solitude as a consequence of separation

This precisely depicts the existential condition of the “Individual.” An Individual is one who exists in solitude, premised on the sundering of the world.

6. Contrasting the Two Concepts

	Kojin 個人 (“solid person”)	Kojin 孤人 (“solitary person” = Individual)
Worldview	Self-other non-separation	Self-other separation
Premise	Exists within connection	Exists in a sundered world
Position of the person	The hard part within connection	A solitary entity at the end of division
Connection	Present from the beginning	Constructed afterward
Kanji meaning	The hard part of a person	A solitary person
Philosophical origin	Japanese / Eastern	Western modern

As this contrast makes clear, kojin (個人) and “Individual” are entirely different concepts. Continuing to use kojin (個人) as the translation of “Individual” conflates two incompatible worldviews.

7. Conclusion

The correct Japanese translation of “Individual” is “Kojin” (孤人).

Kojin (個人) is not a translation of “Individual.” It is a uniquely Japanese concept, rooted in the worldview of self-other non-separation, meaning “the hard part within connection between people.”

“Individual,” on the other hand, stands on the worldview of self-other separation. The world is sundered; what remains at the end of division, solitary — that is the “Individual.” To translate this concept accurately into Japanese, it should be called kojin (孤人) — the solitary person.

By distinguishing kojin (個人, the solid person) from kojin (孤人, the solitary person), the Japanese language gains the ability to articulate two worldviews with clarity.

個人 is the hardness within connection; 孤人 is the solitary one in a sundered world.

The Correct Japanese Translation of 'Individual' is 'Kojin' (孤人)