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钴 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
cobalt; clothes-ironng, 10 strokes, radical 钅, rank #32399, Very Hard
cobalt (chemistry)unknown, 10 strokes, radical 钅, rank #32399, Very Hard
Taiwan pr. [gu1]unknown, 10 strokes, radical 钅, rank #32399, Very Hard
(gu3) T3
  1. 1cobalt; clothes-iron
  2. 2cobalt (chemistry)
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March 24, 2026
(鈷)(gu3)

The character 钴 (gǔ) refers to cobalt, a chemical element used in various applications such as batteries and pigments. In some contexts, it can also relate to the term for clothes-iron, reflecting its metallic properties. This character is primarily used in scientific and industrial contexts.

Strokes10RadicalFrequency#32399DifficultyVery Hard
Cultural Note

Cobalt is significant in Chinese industry, especially in battery production and ceramics, connecting to China’s advancements in technology and manufacturing.

Memory Tip

Imagine a blue cobalt-colored coat hanging on an iron clothes rack. The blue color reminds you of the 'gǔ' sound, as cobalt is often associated with blue pigments in art and industry.

Meanings of 钴

(gu3)
1cobalt; clothes-iron
2cobalt (chemistry)
Exercise 1 of 2

Listen & Choose the Meaning

Choose the correct answer:

About 钴

Simplified
Traditional
10Strokes
Radical
名语素míngcínoun root (n.root)Part of Speech
#—Frequency Rank

Podcast: 钴

JasonAmy

Podcast:

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AI Study Notes for 钴

Memory Mnemonic

Imagine a blue cobalt-colored coat hanging on an iron clothes rack. The blue color reminds you of the 'gǔ' sound, as cobalt is often associated with blue pigments in art and industry.

Usage Notes

Common mistakes include confusing 钴 (gǔ) with other metal-related characters such as 铁 (tiě, iron) or 铜 (tóng, copper). It is primarily used in formal or technical contexts, so be cautious when using it in casual conversation. It often collocates with words related to chemistry and materials science.

HSK Study Tips

Though 钴 (gǔ) is not part of the standard HSK vocabulary, it connects to HSK Level 3 terms related to metals and science. Students should focus on recognizing the character in scientific texts and understanding its pronunciation.

Cultural Note

Cobalt is significant in Chinese industry, especially in battery production and ceramics, connecting to China’s advancements in technology and manufacturing.

Common Mistakes

Learners often confuse 钴 (gǔ) with 锅 (guō, pot) due to similar phonetics. Remember, 钴 specifically refers to cobalt, while 锅 relates to kitchenware.

AI-enhanced 2026-03-24

Pronunciation of 钴

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Etymology of 钴

Formation Typepictophonetic
六书 ClassificationPhono-semantic (形声字)~80-90% of characters
Explanation

Phonosemantic compound. 钅 represents the meaning and 古 represents the sound. Simplified form of 鈷.

Memory Hint

metal

Semantic (meaning)
+
Phonetic (sound)
Learn more about Phono-semantic (形声字) characters
Exercise 1 of 1

Character Formation Type

What type of character formation is 钴?

Decomposition of 钴

IDS Structure⿰钅古
Full Character
=
jin1
left
Gu3
right
Exercise 1 of 2

Identify the Components

Which of these is a component of 钴?

Write 钴

Practice writing stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

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Cultural Notes for 钴

🏮Cultural insight

Cobalt is significant in Chinese industry, especially in battery production and ceramics, connecting to China’s advancements in technology and manufacturing.

Word Family of 钴

Words Containing This Character1
Taiwan pr. [gū]
Exercise 1 of 1

Compound Meaning

What does 钴 mean?

Frequently Asked Questions about 钴

钴 is primarily used in the production of batteries and pigments.