息 — Breath, Sigh, Son

Meaning

The kanji 息 (iki/soku) has several meanings in Japanese, most commonly "breath" or "sigh." It can also refer to "son" and "rest," showing how its meaning has evolved over time. At its core, 息 represents the vital act of breathing – the very essence of life itself. As "breath," it can denote a physical inhale or exhale, a sigh, or even metaphorically, one's 'spirit' or 'vitality,' as in 息吹 (ibuki) for a fresh breath of life.

Looking at the visual structure of 息 reveals its origins. It combines two main components: 自 (ji), which meant "nose" in older forms and now means "self," and 心 (kokoro), meaning "heart" or "mind." Historically, the top component 自 depicted a nose. This made 息 an ideograph visually representing air coming from the nose or from within the self. The addition of 心 (heart/mind) beneath it emphasizes an internal, vital function tied to one's core being or emotions. It signifies that breath is an essential process, originating within the self and deeply connected to one's life force and feelings.

The meanings of "son" and "rest" also stem logically from its primary meaning. For example, a "son" (息子 - musuko) is often seen as an extension of oneself, a 'breath' of one's own lineage. Similarly, "rest" (休息 - kyuusoku) is naturally linked to breathing. Deep, calm breathing is characteristic of relaxation and recovery. This kanji, with its 10 strokes, is taught in the 4th grade in Japanese elementary schools, making it a moderately complex character to write.

Readings

On'yomi (音読み) — Chinese-derived readings

The On'yomi, or Chinese-derived reading, for 息 is ソク (Soku). You'll typically find this reading in compound words, especially in more formal or abstract contexts, or when discussing topics like interest rates or news.

• 休息きゅうそく (kyuusoku) — meaning 'rest' or 'break'. This compound combines 休 (rest) with 息, emphasizing a period of cessation from activity, often for recovery.
• 消息しょうそく (shousoku) — meaning 'news', 'tidings', or 'whereabouts'. This word implies information or communication, often regarding someone's state or location, akin to catching 'wind' or 'breath' of something.
• 利息りそく (risoku) — meaning 'interest' (on money). This refers to the profit gained from investments or loans. Here, '息' carries a sense of accumulation or growth, though its connection to 'breath' is more abstract and historical.
• 息災そくさい (sokusai) — meaning 'good health' or 'safety'. This term often appears in prayers or wishes for someone to be free from calamity or illness, conveying a state of well-being where one can breathe easily.

Kun'yomi (訓読み) — Native Japanese readings

The primary Kun'yomi, or native Japanese reading, for 息 is いき (iki). This reading is widely used when 息 stands alone as a noun meaning "breath," or in various common compound words that describe states of breathing or related actions. This is arguably the most common and essential reading to master for this kanji.

• 息いき (iki) — meaning 'breath'. This is the fundamental use of the kanji in its native reading, referring directly to the air inhaled and exhaled.
• 息子むすこ (musuko) — meaning 'son'. This is a very common and important word, where 息 takes a special, irregular reading ('musu' for 息, 'ko' for 子). It represents a male child.
• 息苦しいいきぐるしい (ikigurushii) — meaning 'suffocating' or 'breathless'. This adjective describes a feeling of difficulty in breathing, often due to physical exertion or a confined space.
• 溜息ためいき (tameiki) — meaning 'sigh'. This compound refers to a long, deep audible breath, typically expressing relief, weariness, or sadness.
• 息吹いぶき (ibuki) — meaning 'breath', 'sprout', or 'vitality'. This word has a poetic nuance, often referring to the fresh breath of nature, a new sprout of life, or a surge of energy.

Common Words & Compounds

Here are more common words and compounds featuring 息, organized by theme to help you remember and apply them effectively.

Direct Breath & Physical States

• 息いき (iki) — breath, respiration. The most basic and direct use of the kanji.
• 息をするいきをする (iki o suru) — to breathe. A common verb phrase indicating the action of breathing.
• 息切れいきぎれ (ikigire) — shortness of breath, out of breath. Describes the physical state after exertion.
• 息を吸ういきをすう (iki o suu) — to inhale (literally, 'to suck breath').
• 息を吐くいきをはく (iki o haku) — to exhale (literally, 'to spit out breath').
• 呼吸こきゅう (kokyuu) — breath, respiration. A more formal term, combining 呼 (to call/exhale) and 息 (breath).

Rest & Condition

• 深呼吸しんこきゅう (shinkokyuu) — deep breath. Refers to taking a full, conscious breath, often for relaxation or preparation.
• 息を殺すいきをころす (iki o korosu) — to hold one's breath (literally, 'to kill one's breath'). Often done to hide or listen intently.
• 息抜きいきぬき (ikinuki) — a break, relaxation (literally, 'breathing out'). Refers to taking a short rest to refresh oneself.

Other Meanings & Metaphorical Use

• 息子むすこ (musuko) — son. As previously mentioned, a core meaning of the kanji in a familial context.
• 全速力ぜんそくりょく (zensokuryoku) — full speed, top speed. Here, 息 (soku) takes on a sense of continuous, unrestrained momentum, as if 'without rest.'
• 一息ひといき (hitoiki) — a breath, a pause, a short break. Can also mean 'in one breath' or 'all at once.'

Example Sentences

Memory Tip

To remember 息 (breath, sigh, son, rest), visualize its components: 自 (self) at the top and 心 (heart) at the bottom. Imagine that your 'breath' is something that comes from your 'self' (your nose, your being) and is controlled by your 'heart' (your life force, your emotions). When you take a 'breath' or let out a 'sigh,' it's a physical expression of your inner 'self' and 'heart.' This connection also extends to 'rest,' as relaxing allows your self and heart to settle, leading to calm breathing. As for 'son,' you can think of a son as 'a breath of your own life,' originating from your 'self' and being dear to your 'heart.'