Meaning
Hello, Japanese learners! This article delves into the N2 kanji 固, a fascinating character that embodies the concepts of "hard," "solid," and "firm." Essentially, 固 conveys a state of being unyielding, stable, or resistant to change. It can refer to physical hardness, like a solid object, or more abstract firmness, such as strong resolve or a stubborn personality. Think of anything that has solidified, become fixed, or is simply very tough.
First, consider its structure. The kanji 固 is composed of two main parts: the radical 囗 on the outside and 古 on the inside. The 囗 radical, meaning "enclosure" or "boundary," visually represents something contained or surrounded. The inner component 古 means "old." In this context, it primarily serves as a phonetic element, providing the "ko" sound. Still, you might imagine that "old" things often become "hard" or "set" over time, subtly reinforcing the meaning. Therefore, when you visualize something "enclosed" (囗) and perhaps "old" (古), it becomes easier to associate it with the concept of being firm, solid, or fixed. This kanji has 8 strokes and is taught in the 4th grade in Japan.
Readings
On'yomi (音読み) — Chinese-derived readings
The On'yomi, or Chinese-derived reading, for 固 is コ (ko). This reading appears mainly in compound words, where 固 combines with other kanji to form more complex terms related to firmness, stability, or solidification. It's especially common in technical or formal settings.
- 固定 (kotei) — fixed, stationary, or secure. This term describes anything set in place and unmoving, such as a fixed price or a securely mounted camera.
- 固体 (kotai) — solid (as in a state of matter). When referring to the physical state of matter, like ice or rock, you'll encounter this word.
- 強固 (kyōko) — strong, firm, or solid. This word emphasizes a high degree of strength or stability, often applying to structures or beliefs.
- 凝固 (gyōko) — solidification or coagulation. It describes the process of something transforming into a solid from a liquid or gaseous state, such as blood clotting or gelatin setting.
Kun'yomi (訓読み) — Native Japanese readings
The Kun'yomi, or native Japanese readings, for 固 are frequently used in verbs and adjectives. They allow 固 to express actions of hardening or becoming firm, as well as to describe states of hardness.
かた.める (katameru) — This transitive verb means "to harden," "to solidify," "to strengthen," or "to consolidate." It implies an action taken by someone or something to make an object firm or stable.
決意を固める (ketsui wo katameru) — to harden one's resolve, to strengthen one's determination.
基礎を固める (kiso wo katameru) — to solidify the foundation, to lay a firm groundwork.
かた.まる (katamaru) — This intransitive verb means "to harden," "to solidify," "to congeal," or "to gather (as in a crowd)." It describes something becoming firm or forming a mass on its own.
氷が固まる (koori ga katamaru) — ice hardens, ice congeals.
意志が固まる (ishi ga katamaru) — one's will becomes firm, one's mind is made up.
かた.い (katai) — This adjective means "hard," "solid," "firm," "tough," or "stubborn." It describes the quality or characteristic of something.
固い物 (katai mono) — a hard object.
頭が固い (atama ga katai) — literally "head is hard," meaning stubborn or inflexible in thinking.
Common Words & Compounds
The kanji 固 appears in a wide array of common words and phrases. Learning these compounds will greatly enhance your vocabulary and comprehension. Here are some key examples, grouped by theme:
Stability & Physicality
- 固体 (kotai) — solid (as a state of matter). This is a fundamental scientific term, often seen in physics or chemistry.
- 固定 (kotei) — fixed, stationary, secure. Think about a fixed-term contract or a securely mounted object.
- 強固 (kyōko) — strong, firm, solid. Often used for structures, defenses, or convictions.
- 堅固 (kengo) — firm, strong, sturdy. Similar to 強固, but often used for physical structures, like a fortress.
- 固形 (kokei) — solid (form). Used to describe something in solid form, like solid food or solid soap.
Actions & States of Hardening
- 固める (katameru) — to harden, to solidify, to strengthen (transitive verb). This refers to the act of making something firm.
- 固まる (katamaru) — to harden, to solidify, to congeal (intransitive verb). This refers to something becoming firm on its own.
- 凝固 (gyōko) — solidification, coagulation. The process of turning into a solid mass.
- 固着 (kochaku) — adhesion, sticking fast, fixation. Describes something that is firmly attached.
Determination & Characteristics
- 固い (katai) — hard, solid, firm, stubborn (adjective). This versatile adjective can describe physical hardness or mental inflexibility.
- 固辞 (koji) — firm refusal. To politely but firmly decline an offer or request.
- 固執 (koshitsu) — adherence, persistence, obstinacy. Often used in a slightly negative sense for stubbornly clinging to one's opinions or ways.
- 固有名詞 (koyūmeishi) — proper noun. This term refers to a noun that identifies a unique entity, implying something 'fixed' or 'specific'.
Example Sentences
コンクリートが固まるまで、しばらく時間がかかります。
Konkurīto ga katamaru made, shibaraku jikan ga kakarimasu.
It will take some time until the concrete hardens.
彼は決意を固め、夢の実現に向かって努力した。
Kare wa ketsui wo katame, yume no jitsugen ni mukatte doryoku shita.
He strengthened his resolve and worked hard towards realizing his dream.
頭が固い人は、新しい考えを受け入れるのが苦手だ。
Atama ga katai hito wa, atarashii kangae wo ukeireru no ga nigate da.
People who are stubborn (literally, "have hard heads") are not good at accepting new ideas.
地震に備えて、家具を壁に固定する必要がある。
Jishin ni sonaete, kagu wo kabe ni kotei suru hitsuyō ga aru.
In preparation for earthquakes, it is necessary to fix furniture to the wall.
水が氷に凝固する温度は摂氏０度です。
Mizu ga koori ni gyōko suru ondo wa sesshi zero-do desu.
The temperature at which water solidifies into ice is 0 degrees Celsius.
この建物は非常に強固な構造をしており、嵐にも耐えられる。
Kono tatemono wa hijō ni kyōko na kōzō wo shiteori, arashi ni mo taerareru.
This building has a very strong and firm structure, capable of withstanding storms.
社長は個人的な理由でその役職を固辞した。
Shachō wa kojinteki na riyū de sono yakushoku wo koji shita.
The president firmly refused that position for personal reasons.
試験の結果を待つ間、みんな固唾を呑んで見守っていた。
Shiken no kekka wo matsu aida, minna katazu wo nonde mimamotte ita.
Everyone held their breath (in suspense) while waiting for the exam results.
彼は一度決めたら、その意見を固執してなかなか変えない傾向がある。
Kare wa ichido kimetara, sono iken wo koshitsu shite nakanaka kaenai keikō ga aru.
Once he makes a decision, he tends to stubbornly stick to his opinion and rarely changes it.
私たちは計画を固め、新しいプロジェクトに取り組む準備ができた。
Watashitachi wa keikaku wo katame, atarashii purojekuto ni torikumu junbi ga dekita.
We solidified our plan and are ready to tackle the new project.
Memory Tip
To help remember 固, consider its components: 囗, meaning 'enclosure,' and 古, meaning 'old.' Imagine an old (古), cherished family heirloom that is kept firmly enclosed (囗) in a display case. Because it's old and valuable, it needs protection, so it's kept in a very solid and firm enclosure. Alternatively, you could visualize a piece of old (古) clay that, after being left out for ages, has become completely hard and unyielding, now enclosed (囗) in its hardened state. These images should help you connect the components to the core meanings of hard, solid, and firm.