Meaning
The kanji 浮 (uki) is a versatile character, primarily meaning 'to float', 'to rise to the surface', or 'to be buoyant'. Yet, its connotations extend far beyond the literal act of floating on water. It can also describe something unstable, transient, superficial, or even lighthearted and in high spirits. Imagine a boat gently bobbing on the waves: it floats, but is also inherently unstable and perhaps somewhat aimless. This duality of buoyancy and instability is a core aspect of 浮.
Like many kanji, 浮's origin lies in a phono-semantic compound. The left-hand side, 氵 (sui), is the water radical, clearly indicating the kanji’s connection to water. When you see 氵, think of liquids, rivers, or anything involving moisture. The right-hand component, 孚 (fu), primarily serves as a phonetic element, giving the kanji its 'fu' On'yomi reading. Interestingly, 孚 itself means 'trust' or 'hatch' (as in a bird hatching an egg) and visually depicts a hand holding a child. While not directly linked to floating, one could interpret a subtle nuance here. Perhaps it suggests being 'held up' or 'supported' as something floats, or conveys the fragility and emerging nature of something coming to the surface.
Thus, 浮's visual form tells a direct story: something (孚, perhaps the 'thing' being supported) interacts with water (氵). With 10 strokes, 浮 is relatively balanced to write. Classified as an N2 level kanji, you'll encounter 浮 in intermediate to advanced texts. It is also part of the Jōyō Kanji list, signifying its common usage in modern Japanese.
Readings
On'yomi (音読み) — Chinese-derived readings
On'yomi readings, derived from Chinese pronunciations, are typically used when 浮 forms part of a compound word with other kanji.
フ (fu): フ is the most common On'yomi reading for 浮, appearing in a wide range of compounds. It's often associated with the literal act of floating or rising, or with the abstract concepts of superficiality and instability.
浮力 (furyoku) — buoyancy, lifting power. This term refers to the upward force exerted by a fluid that opposes an immersed object's weight.
浮上 (fujō) — surfacing, rising to the surface. It's used for submarines surfacing or issues coming to light, e.g., 問題が浮上する (mondai ga fujō suru - a problem surfaces).
浮動 (fudō) — floating, instability, fluctuation. It's often used for things that are not fixed, such as prices or votes, e.g., 浮動票 (fudōhyō - floating votes).
ブ (bu): ブ is less common, found in specific, often older or more specialized compounds. It often implies a sense of aimless wandering or being unattached.
浮浪者 (burōsha) — vagrant, tramp. This term refers to someone who wanders without a fixed home, embodying 浮's 'floating' or unmoored aspect.
浮沈 (fuchin) — ups and downs, rise and fall. Combining 浮 (float) and 沈 (sink), this compound vividly describes the vicissitudes of life or fortune.
Kun'yomi (訓読み) — Native Japanese readings
Kun'yomi readings are native Japanese pronunciations, associated with the meaning of the kanji. They are typically used when the kanji stands alone or is followed by okurigana (suffix hiragana).
う.く (u.ku): This intransitive verb means 'to float (by itself),' 'to rise to the surface,' or 'to be buoyant.' It can also describe feeling elated or light-hearted.
船が水面に浮く (fune ga suimen ni uku) — The boat floats on the water's surface.
気分が浮く (kibun ga uku) — To feel light-hearted or elated.
う.かす (u.kasu): As the transitive counterpart of う.く, this verb means 'to float (something),' 'to make something float,' 'to bring to the surface,' or 'to save (money/time).'
木を水に浮かす (ki o mizu ni ukasu) — To float wood on the water.
費用を浮かす (hiyō o ukasu) — To save on expenses.
う.かれる (u.kareru): This intransitive verb means 'to be in high spirits,' 'to be elated,' 'to make merry,' or sometimes 'to be frivolous.' It often carries the nuance of being swept up in the moment.
浮かれた声 (ukareta koe) — An excited/merry voice.
お祭りで浮かれる (omatsuri de ukareru) — To be merry at a festival.
う.かぶ (u.kabu): Another intransitive verb, う.かぶ is similar to う.く but often implies something 'emerging,' 'appearing,' or 'coming to mind.'
良い考えが浮かぶ (ii kangae ga ukabu) — A good idea comes to mind.
彼の顔が目に浮かぶ (kare no kao ga me ni ukabu) — His face comes to mind / I can picture his face.
Common Words & Compounds
Below are common words and compounds featuring 浮, categorized to help you understand their nuanced meanings and contexts.
Related to Physical Floating & Movement:
浮遊 (fuyū) — floating, suspension (e.g., in air or water). For example, 埃が空気中に浮遊する (hokori ga kūkichū ni fuyū suru - dust floats in the air).
浮き輪 (ukiwa) — a lifebuoy, swimming ring. A common item for children or non-swimmers.
浮上 (fujō) — surfacing, rising to the surface. It can be literal (e.g., 潜水艦が浮上する - sensuikan ga fujō suru - a submarine surfaces) or figurative (e.g., 問題が浮上する - mondai ga fujō suru - a problem emerges).
浮力 (furyoku) — buoyancy, the ability to float. A crucial concept in physics.
浮動 (fudō) — floating, instability, fluctuation. It's often used for concepts like 'floating assets' (e.g., 浮動資産 - fudō shisan) or 'floating voters'.
Related to Feelings, States, & Abstract Concepts:
浮気 (uwaki) — infidelity, flirtation, a fickle mind. Literally means 'floating spirit' or 'unsteady heart'.
浮き沈み (ukishizumi) — ups and downs, fluctuations (in life, fortune, market). This implies a constant state of change.
浮世 (ukiyo) — the floating world; the transient, often hedonistic urban life of the Edo period, famously depicted in ukiyo-e prints.
浮かれる (ukareru) — to be in high spirits, to be elated. This often suggests a slightly unrestrained or carefree joy.
浮つく (uwatsuku) — to be frivolous, to be restless, to be unstable or flighty.
Related to Emergence & Saving:
浮かぶ (ukabu) — to come to mind, to emerge, to float.
浮かせる (ukaseru) — to make float, to save (money/time).
浮動票 (fudōhyō) — swing vote, floating vote. Voters who haven't decided their political allegiance.
浮き足立つ (ukiashidatsu) — to get nervous, to become restless, to be on tip-toes (literally: 'floating feet stand').
Example Sentences
ボールは水面に浮いていた。
Bōru wa suimen ni uite ita.
The ball was floating on the water's surface.
その事件の真相が浮上した。
Sono jiken no shinsō ga fujō shita.
The truth behind that incident surfaced.
試験に合格して気分が浮かれている。
Shiken ni gōkaku shite kibun ga ukarete iru.
I passed the exam and am in high spirits.
どうすれば費用を浮かせられるか、みんなで考えた。
Dō sureba hiyō o ukaserareru ka, minna de kangaeta.
Everyone thought about how we could save on expenses.
彼はいつも浮気な性格で、信用できない。
Kare wa itsumo uwaki na seikaku de, shin'yō dekinai.
He always has a fickle personality and cannot be trusted.
長年の努力が実を結び、成功の道が浮かび上がってきた。
Naganen no doryoku ga mi o musubi, seikō no michi ga ukabiagatte kita.
Years of effort bore fruit, and the path to success emerged.
経済の浮き沈みが激しく、将来が不透明だ。
Keizai no ukishizumi ga hageshiku, shōrai ga futōmei da.
The economy's ups and downs are severe, and the future is uncertain.
古い記憶が突然心に浮かんできた。
Furui kioku ga totsuzen kokoro ni ukande kita.
Old memories suddenly came to mind.
Memory Tip
To remember 浮, focus on its two main components. The unmistakable left part is the water radical (氵). This immediately signals that 浮 has something to do with water. The right part, 孚, can be imagined as a baby bird (子, child element) being held (爪, hand/claw element) in a nest, waiting to hatch. Imagine this little baby bird is incredibly light and buoyant, so light that it floats effortlessly on water! Or, perhaps more humorously, picture the mama bird trying to teach it to swim, but it just keeps floating! This imagery helps connect the 'water' aspect with the 'floating' idea and the 'lightness' implied by 孚.