Meaning
The kanji 起 captures the moment of transition from stillness to movement. Whether you are climbing out of bed or a new problem is surfacing, this character describes the act of "rising" or "starting." It is a staple of the JLPT N4 level and is introduced to Japanese students in the 3rd grade. Structurally, it combines the radical 走 (to run/walk) with 己 (self), suggesting a person literally putting themselves into motion.
Etymologically, this character is a phono-semantic compound. The left side, 走, provides the meaning of movement. The right side, 己, historically served as a phonetic guide but also symbolizes a person. Together, they depict someone rising from a kneeling or lying position to stand on their own feet. Over time, the meaning expanded beyond physical movement. It now describes abstract beginnings, such as a computer booting up or a conflict breaking out in society.
Readings
To master 起, you must distinguish between its formal Chinese-derived reading and its three common Japanese verb forms. These verbs are frequently confused because they share the same kanji but different grammatical functions.
On'yomi (音読み) — Chinese-derived readings
The on'yomi キ (ki) appears in formal compounds. These words often relate to technical startups, official origins, or structured routines. You will encounter this reading frequently in business news and instruction manuals.
- 起床 (kishō) — Rising from bed; a formal way to say "waking up."
- 起動 (kidō) — Startup; booting up a computer or activating a machine.
- 起源 (kigen) — Origin; the historical root or source of something.
Kun'yomi (訓読み) — Native Japanese readings
The native readings form verbs that are essential for daily life. Pay close attention to transitivity (who is performing the action).
お・きる (o-kiru) is an intransitive verb. Use this when the subject gets up or stays awake on their own.
- 朝早く起きる (asa hayaku okiru) — To wake up early in the morning.
- 夜まで起きている (yoru made okite iru) — To stay awake until late at night.
お・こす (o-kosu) is a transitive verb. This is used when you wake someone else or trigger an event.
- 友だちを起こす (tomodachi wo okosu) — To wake up a friend.
- 火を起こす (hi wo okosu) — To start/kindle a fire.
お・こる (o-koru) is used for events or phenomena that happen or occur spontaneously.
- 奇跡が起こる (kiseki ga okoru) — A miracle happens.
Common Words & Compounds
The character 起 is highly versatile. It appears in contexts ranging from morning grumpiness to launching a multi-million dollar tech startup.
Daily Routine and Physical Action
- 早起き (hayaoki) — Early bird; rising early.
- 寝起き (neoki) — The state of someone just after waking (e.g., "He has a bad attitude right after waking up").
- 起き上がる (okiagaru) — To sit up or stand up from a lying position.
- 起立 (kiritsu) — "Stand up!" (A standard command in Japanese classrooms).
Business and Society
- 起業 (kigyō) — Starting a business; entrepreneurship.
- 起草 (kisō) — Drafting a document, such as a law or a contract.
- 起訴 (kiso) — Prosecution; bringing a legal case against someone.
Abstract Concepts
- 起点 (kiten) — The starting point of a journey or a mathematical graph.
- 再起 (saiki) — Making a comeback or recovering from a failure.
- 起伏 (kifuku) — The ups and downs of a landscape or someone's emotions.
Example Sentences
わたしは毎朝６時に起きます。
watashi wa maiasa rokuji ni okimasu.
I get up at 6 o'clock every morning.
お母さんに起こしてもらいました。
okaasan ni okoshite moraimashita.
I had my mother wake me up.
道で交通事故が起こりました。
michi de koutsuujiko ga okorimashita.
A traffic accident occurred on the road.
彼は早起きが得意です。
kare wa hayaoki ga tokui desu.
He is good at waking up early.
先生が「起立」と言いました。
sensei ga "kiritsu" to iimashita.
The teacher said, "Stand up."
パソコンを起動してください。
pasokon wo kidou shite kudasai.
Please start/boot up the computer.
将来、自分で会社を起こしたいです。
shourai, jibun de kaisha wo okoshitai desu.
In the future, I want to start my own company.
昨日は遅くまで起きていました。
kinou wa osoku made okite imashita.
I was awake until late yesterday.
この物語の起源はとても古いです。
kono monogatari no kigen wa totemo furui desu.
The origin of this story is very old.
不況が社会問題を引き起こしました。
fukyou ga shakaimondai wo hikiokoshimashita.
The recession triggered social problems.
Related Kanji
- 貸 — To lend, rent, or loan (Kanji N4)
- 集 — Gather, Collect, Assemble (Kanji N4)
- 帰 — Return Home, Arrive At (Kanji N4)
- 洗 — Wash (Kanji N4)
- 走 — Run, Move fast (Kanji N4)
- 思 — To Think, Feel, Imagine (Kanji N4)
Memory Tip
Think of the radical 走 as a pair of legs running and 己 as a person's body. Tell yourself: "I need to get MYSELF (己) moving and RUN (走) to be on time!" This helps you remember that 起 is about the specific moment you stop lying down and start your day. You can also visualize someone sitting on the floor (己) and suddenly springing up to run (走) because they realized they were late.