Meaning
The kanji 唯 (yui, tada) primarily means "only," "sole," "merely," or "simply." It conveys exclusivity, singularity, or a limited scope, stressing that only what is stated is present or applicable. You'll encounter this kanji in various contexts, from formal and philosophical discussions to everyday expressions, especially with its kun'yomi reading.
Its etymology illuminates this core meaning. As a phono-semantic compound, 唯 combines two elements: a semantic component that hints at its meaning, and a phonetic component that suggests its sound. The left radical, 口 (kuchi), signifies a "mouth" or "opening," often linked to speaking or expression. The right side, 隹 (furuitori), depicts a "short-tailed bird." While 隹 itself could mean "only" or "just so" in classical Chinese, its primary role here is phonetic, giving 唯 its 'イ' or 'ユイ' sound. Visually, combining 'mouth' (口) and 'bird' (隹) suggests a single, decisive utterance, or a call that stands out as the only sound. This reinforces the concept of 'only' or 'sole,' much like a bird making a singular, unique call from its beak.
With 11 strokes, 唯 is a secondary school kanji (Grade S), meaning students typically learn it in junior high or high school, beyond the elementary curriculum. Its inclusion in the JLPT N1 level highlights its advanced usage and prevalence across a wide range of Japanese vocabulary.
Readings
On'yomi (音読み) — Chinese-derived readings
On'yomi readings originate from Chinese pronunciations and are usually found in compound words (熟語, 熟語). For 唯, the primary On'yomi readings are ユイ (yui) and イ (i).
- ユイ (yui): ユイ is the most frequent On'yomi, appearing in many essential N1 vocabulary words. It often conveys a sense of "unique" or "exclusive."
唯一 (yuiitsu) — meaning: only, sole, unique. For example, 彼は私の唯一の友達です。 (He is my only friend.)
唯物論 (yuibutsuron) — meaning: materialism (a philosophical doctrine). For example, 彼は唯物論者です。 (He is a materialist.)
唯心論 (yuishinron) — meaning: idealism (a philosophical doctrine). For example, 唯心論は唯物論の対極にあります。 (Idealism is the antithesis of materialism.)
- イ (i): Less common, イ appears in specific, often more advanced or classical compounds. Here, it conveys assent or compliance.
唯諾 (idaku) — meaning: assent, consent. This term often appears in the compound 唯々諾々, meaning obsequious assent or blindly following orders.
唯々諾々 (iidakudaku) — meaning: obsequious assent, submissive. For example, 彼は上司の意見に唯々諾々と従った。 (He obsequiously assented to his boss's opinion.)
Kun'yomi (訓読み) — Native Japanese readings
Kun'yomi readings are native Japanese pronunciations associated with a kanji, typically used when it stands alone or forms part of a native Japanese word. For 唯, the primary Kun'yomi is ただ (tada).
- ただ (tada): This reading means "only," "merely," or "simply." It frequently functions as an adverb or particle, emphasizing exclusivity or a straightforward nature.
唯 (tada) — meaning: only, simply, merely. For example, 唯見ているだけだった。 (I was just watching.)
唯ならぬ (tadanaranu) — meaning: unusual, extraordinary, serious. This often implies gravity or abnormality. For example, 唯ならぬ雰囲気が漂っていた。 (An unusual atmosphere hung in the air.)
唯事 (tadagoto) — meaning: an ordinary matter. Most commonly, you'll see it in its negative form, 唯事ではない (tada goto dewa nai), meaning "it's no ordinary matter" or "it's serious." For example, これは唯事ではない。 (This is no ordinary matter.)
Common Words & Compounds
To truly grasp 唯, understanding its usage in context is essential. Below are common words and compounds, categorized to facilitate learning:
Words of Exclusivity and Uniqueness
- 唯一 (yuiitsu) — the only, sole, unique. This is one of the most fundamental and frequently used compounds.
- 唯我独尊 (yuigadokuson) — self-conceit, narcissism; lit. "I alone am the world-honored one" (a Buddhist phrase).
- 唯今 (tadaima) — just now, right away; also used as "I'm home!" (though the kanji for this specific usage is rarely written in practice).
Philosophical and Academic Terms
- 唯物論 (yuibutsuron) — materialism (philosophy emphasizing matter over spirit).
- 唯心論 (yuishinron) — idealism (philosophy emphasizing mind over matter).
- 唯識 (yuishiki) — Yogacara, "consciousness-only" (a school of Buddhist thought).
- 唯美主義 (yuibishugi) — aestheticism, art for art's sake.
Adverbial and Emphatic Usage
- 唯 (tada) — simply, merely, only. Used to emphasize that nothing else is involved.
- 唯ならぬ (tadanaranu) — extraordinary, unusual, serious. Implies something out of the ordinary, often with negative connotations.
- 唯々 (tadatada) — simply, solely, nothing but. An intensified form of 唯.
- 唯事 (tadagoto) — an ordinary matter (usually used with a negative, e.g., 唯事ではない).
Example Sentences
彼にとって、家族が唯一の支えだった。
Kare ni totte, kazoku ga yuiitsu no sasae datta.
For him, family was his only support.
私は唯その美しさに感動した。
Watashi wa tada sono utsukushisa ni kandou shita.
I was simply moved by its beauty.
これは唯ならぬ事態だと感じた。
Kore wa tadanaranu jitai da to kanjita.
I felt that this was no ordinary situation.
彼は唯物論者として、精神的なものを否定した。
Kare wa yuibutsuronsha to shite, seishinteki na mono o hitei shita.
As a materialist, he denied spiritual things.
唯努力するのみが道だ。
Tada doryoku suru nomi ga michi da.
Simply making an effort is the only way.
唯々諾々と指示に従うだけでは成長できない。
Iidakudaku to shiji ni shitagau dake de wa seichou dekinai.
You cannot grow by merely giving obsequious assent to instructions.
彼女は唯美主義の影響を強く受けていた。
Kanojo wa yuibishugi no eikyou o tsuyoku ukete ita.
She was strongly influenced by aestheticism.
人生の唯一の目的は幸福だと彼は信じている。
Jinsei no yuiitsu no mokuteki wa koufuku da to kare wa shinjite iru.
He believes that the sole purpose of life is happiness.
唯々驚くばかりで、言葉が出なかった。
Tadatada odoroku bakari de, kotoba ga denakatta.
I was simply astonished and couldn't find any words.
唯我独尊の態度は、周りの人々を遠ざけることがある。
Yuigadokuson no taido wa, mawari no hitobito o toozakeru koto ga aru.
A self-conceited attitude can sometimes alienate those around you.
Memory Tip
To help remember 唯, focus on its components: 口 (mouth) and 隹 (a small bird). Picture a small bird with a cute mouth that can only make one specific sound—its unique chirp—distinguishing it from all other birds. Alternatively, visualize someone speaking (口) and emphasizing that what they are saying is the only truth, as definitive as a bird's distinct call (隹). This connection between the visual elements helps solidify the core meaning of 'only' or 'sole.'