Meaning
The kanji 直 (なおす, なおる, チョク, ジキ) is a foundational character in Japanese. It encompasses a range of meanings related to 'directness,' 'straightness,' 'honesty,' and 'correction' or 'repair.' At its heart, 直 signifies a lack of deviation—a straight path, integrity, and uprightness. When used as a verb, it describes the action of making something straight, righting a wrong, or restoring something to its original or proper condition.
Historically, 直 is an ideograph. Its ancient forms are often interpreted as representing an eye (目) looking directly at something. Various vertical lines or other components indicate precision, straightness, or the act of drawing something straight. The top component resembles 目 (eye), suggesting observation and discernment. The bottom part (which sometimes appears as 十 or related forms) can be seen as representing the ground, a tool for measurement, or a mark of correctness. Together, these elements convey the idea of observing with clear, 'straight' vision or using a tool to 'straighten' or 'correct' something. This visual connection clarifies its meanings of 'straight,' 'direct,' 'honest' (as in having a 'straight' heart), and 'to fix' or 'to correct.'
This kanji consists of 8 strokes and is taught in the 2nd grade of Japanese elementary school. This makes it a relatively early kanji to learn, yet its applications are broad and sophisticated.
Readings
On'yomi (音読み) — Chinese-derived readings
On'yomi are readings adopted from Chinese pronunciations. They are typically used in compound words, often combined with other kanji.
- チョク (Choku)
The reading チョク is quite common and appears in many compounds related to 'direct,' 'straight,' 'immediate,' or 'honest.' It often implies a lack of intermediary steps or a straightforward path.
正直 (shōjiki) — honesty, frankness, uprightness. This compound combines 正 (correct) with 直, emphasizing genuine and direct truthfulness.
直通 (chokutsū) — direct communication, direct line, through (train/bus). For example, a bus that goes directly to the airport.
直後 (chokugo) — immediately after. Refers to the very moment after an event, without any delay.
ジキ (Jiki)
The reading ジキ is less frequent than チョク but appears in specific compounds. These often emphasize direct interaction or immediate action without involving others.
- 直談判 (jiki-danpan) — direct negotiation, personal appeal. This implies speaking directly to the person in charge.
- 直訴 (jikiso) — direct appeal, direct petition. To appeal directly to a high authority, like a manager or government official.
- 直面 (jikimen) — to meet face to face, direct meeting.
Kun'yomi (訓読み) — Native Japanese readings
Kun'yomi are native Japanese readings, used when the kanji stands alone or forms part of a verb or adjective stem. These readings directly convey the kanji's meaning.
- なお.す (nao.su)
This is a transitive verb meaning 'to fix,' 'to repair,' 'to correct,' or 'to revise.' It implies an agent performing the action to set something right.
直す (naosu) — to fix, to repair, to correct. For example, 間違いを直す (machigai o naosu - to correct a mistake).
時計を直す (tokei o naosu) — to repair a watch.
姿勢を直す (shisei o naosu) — to correct one's posture.
なお.る (nao.ru)
This is an intransitive verb. It means 'to be fixed,' 'to be repaired,' 'to recover (from illness),' or 'to be cured.' It describes a state of returning to normal or being restored, without a direct agent.
直る (naoru) — to be fixed, to recover. For example, 病気が直る (byōki ga naoru - to recover from illness).
故障が直る (koshō ga naoru) — a breakdown is fixed.
問題が直る (mondai ga naoru) — a problem is resolved.
ただ.ちに (tada.chi ni)
This adverbial reading means 'immediately,' 'directly,' 'promptly,' or 'at once.' It emphasizes swift action without delay.
直ちに (tadachi ni) — immediately, at once.
直ちに行動する (tadachi ni kōdō suru) — to act immediately.
直ちに報告する (tadachi ni hōkoku suru) — to report promptly.
す.ぐ (su.gu)
This is another adverbial reading, meaning 'immediately,' 'soon,' 'right away,' or 'straight.' While often written in hiragana, using the kanji 直 can add an emphasis on directness or a lack of deviation in timing or direction, like 直ぐ隣 (right next door).
- 直ぐ (sugu) — immediately, soon, right away.
- 直ぐ行きます (sugu ikimasu) — I'll go right away.
- 直ぐ隣 (sugu tonari) — right next door, directly adjacent.
Common Words & Compounds
Here are more common words and compounds featuring 直, organized by theme for easier learning and memorization.
Concepts of Direction & Location
- 直接 (chokusetsu) — direct, immediate, personal. This is the opposite of 間接 (kansetsu - indirect).
- 直径 (chokkei) — diameter. The straight line passing through the center of a circle.
- 直角 (chokkaku) — right angle. An angle of 90 degrees.
- 直前 (chokuzen) — just before, immediately before.
- 直線 (chokusen) — straight line.
- 直訳 (chokuyaku) — literal translation, word-for-word translation.
Actions & States of Correction/Review
- 見直す (minaosu) — to look over again, to review, to reconsider. Often used when reassessing plans or documents.
- やり直す (yarinaosu) — to redo, to start over, to try again. This implies correcting a previous attempt.
- 書直す (kakinaosu) — to rewrite. To correct or improve written material.
- 引直す (hikinaosu) — to pull straight again, to tighten again.
- 直筆 (jikihitsu) — one's own handwriting, autograph. This emphasizes directness from the person.
Human Qualities & Perception
- 直感 (chokkan) — intuition, hunch. A direct understanding without conscious reasoning.
- 正直 (shōjiki) — honesty, frankness, integrity. A state of being 'straight' in character.
Example Sentences
机を直すのに時間がかかった。
Tsukue o naosu no ni jikan ga kakatta.
It took time to fix the desk.
彼はとても正直な人なので、いつも真実を話す。
Kare wa totemo shōjiki na hito nano de, itsumo shinjitsu o hanasu.
He is a very honest person, so he always tells the truth.
故障した機械が直って、動くようになりました。
Koshō shita kikai ga naotte, ugoku yō ni narimashita.
The broken machine was fixed and started working.
直ちに会議室へお集まりください。
Tadachi ni kaigishitsu e o-atsumari kudasai.
Please gather in the meeting room immediately.
提出する前に、レポートを見直す必要がある。
Teishutsu suru mae ni, repōto o minaosu hitsuyō ga aru.
It is necessary to review the report before submitting it.
風邪が直って、今日から仕事に復帰できます。
Kaze ga naotte, kyō kara shigoto ni fukki dekimasu.
I recovered from my cold and can return to work starting today.
このバスは空港まで直通なのでとても便利だ。
Kono basu wa kūkō made chokutsū nano de totemo benri da.
This bus goes direct to the airport, so it's very convenient.
質問がある場合は、直接お尋ねください。
Shitsumon ga aru baai wa, chokusetsu o-tazune kudasai.
If you have any questions, please ask directly.
間違えてしまったので、もう一度書類を書直しました。
Machigaete shimatta node, mō ichido shorui o kakinaoshimashita.
Since I made a mistake, I rewrote the document one more time.
彼は直感で危険を察知し、皆を助けた。
Kare wa chokkan de kiken o sacchi shi, mina o tasuketa.
He sensed danger by intuition and saved everyone.
Memory Tip
To remember the kanji 直, visualize its components. The top part looks like the kanji for eye (目), while the bottom can be interpreted as 十 (ten or a cross), or simply a straight line with a hook. Imagine an eye (目) carefully observing something, looking directly with a straight gaze. The bottom component could represent a tool, like a straight edge, used to correct or fix what is observed. This imagery of 'seeing clearly' and 'acting to straighten' captures its primary meanings: direct, straight, honest, and to fix. Think of it as 'an eye that makes things straight and true.'