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14 strokes

説 — Theory, Explanation, Opinion

N4
On: セツ、ゼツ
Kun: と.く

Meaning

The kanji is essential for discussing ideas, stories, and information. It primarily represents structured speech used to clarify a point or propose a logic. You will see it most often in words related to giving explanations, writing fiction, or discussing academic theories.

This character is a phono-semantic compound. The left side is the (speech) radical, indicating that the kanji relates to words. The right side is , which originally meant "to open" or "exchange." This suggests that an "explanation" helps "open up" a person's understanding. Some scholars also link it to the joy (悦) felt when a confusing matter is finally made clear.

With 14 strokes, this kanji is taught to Japanese 4th graders. For N4 learners, it is a high-priority character. It appears in everyday words like setsumei (explanation) and shousetsu (novel), which are vital for reading comprehension.

Readings

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

The most common reading is セツ (setsu). Use this for the vast majority of formal and academic compounds.

  • 説明せつめい (setsumei) — Explanation
  • 小説しょうせつ (shousetsu) — Novel / Fiction
  • 学説がくせつ (gakusetsu) — Scientific theory

The secondary reading ゼツ (zetsu) occurs due to rendaku (sequential voicing). It is primarily found in words related to public speaking.

  • 演説えんぜつ (enzetsu) — Public speech / oration

Kun'yomi (訓読み) — Native Japanese readings

The kun'yomi is と.く (toku). This verb means "to explain," "to advocate," or "to preach." While hanasu refers to general talking, toku implies a deeper level of authority, such as a monk explaining a doctrine or a scientist advocating for a specific method.

  • 説くとく (toku) — To explain / to preach
  • 説き明かすときあかす (tokiakasu) — To explain clearly / to unravel a mystery

Common Words & Compounds

Everyday Information

  • 説明書せつめいしょ (setsumeisho) — Instruction manual; crucial for anyone living in Japan.
  • 解説かいせつ (kaisetsu) — Commentary, often heard during sports broadcasts or news segments.
  • 伝説でんせつ (densetsu) — Legend or folklore; stories passed down through generations.

Logical and Persuasive Terms

  • 説得せっとく (settoku) — Persuasion; literally "explaining until someone is convinced."
  • 仮説かせつ (kasetsu) — A hypothesis or temporary theory.
  • 説教せっきょう (sekkyou) — A sermon or a scolding; often used when a parent lectures a child.

Example Sentences

atarashii sumaho no tsukaikata wo setsumei shite kudasai.

Please explain how to use the new smartphone.

saikin, omoshiroi suiri shousetsu wo yomimashita.

I recently read an interesting mystery novel.

kare wa nesshin ni heiwa no taisetsu-sa wo tokimashita.

He earnestly advocated for the importance of peace.

shukudai wo wasurete, sensei ni sekkyou saremashita.

I forgot my homework and was lectured by my teacher.

chichi wo settoku shite, pasokon wo katte moraimashita.

I persuaded my father and he bought me a computer.

Related Kanji

Memory Tip

Think of as the "Storyteller's Kanji." On the left, you have speech (言). On the right, imagine a person standing on two legs, wearing a hat, with their mouth wide open. They are explaining a theory or telling a novel to an audience. When someone explains something well, your mind opens (the meaning of the right side) to new ideas.

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