Lesson 10 · Foundational Components

Metal, Shell: Money Vocabulary — 金 / 贝

金 is the component Lesson 7 named as the one classical element still missing after 木/水/火/土. 贝 answers a separate question: Lesson 3 used 太贵 (tàiguì, "too expensive") as a real-world example without ever explaining 贵 — today it finally gets decomposed.

Your two new components

金
钅 (left side)
jīn
gold, metal, money
8 strokes
贝
 
bèi
shell, cowrie (historical money)
4 strokes

Quick recall — click each card to flip it:

金
jīn — gold, metal, money
贝
bèi — shell, cowrie (historical money)
The five elements are now complete: 木水火土金. 金 originally referred specifically to copper — Bronze Age China's first widely-worked metal — before broadening to "metal" generally and then narrowing again, in modern usage, to specifically mean "gold" or "money." (Wiktionary: 金)
金 joins the shape-shifters — a fourth case. Lesson 1 flagged 人→亻 and 水→氵; Lesson 7 added 火→灬. 金 becomes 钅 on the left side of a character: 钱 (qián, "money"), 钢 (gāng, "steel"), 钉 (dīng, "nail"). Same meaning, same component, different shape depending on position — by now a pattern you should be actively watching for rather than relearning each time.
金 : a real history, but not a usable one. 金 does have an old internal structure — Wiktionary traces it to 士 or 王 (an ancient tool/axe shape standing for "metal") plus 呂 ("two blocks of metal," originally drawn as dots) plus a phonetic lid-shape, 亼. None of those three pieces are in this course's pool, and Wiktionary is explicit that the modern glyph has become "highly stylised" enough that they're no longer visually recoverable — the same situation as 年 in Lesson 8, not like 天's clean 一+大.

贝 is the simplified descendant of 貝, a pictograph of a cowrie shell — literal seashells, used as currency in ancient China before metal coins took over. That history is why so many characters about value, trade, and cost contain 贝: 财 (cái, "wealth"), 购 (gòu, "to purchase"), and — getting to Lesson 3's loose end — 贵:

贵guìexpensive, precious, noble

?+贝=贵

The bottom is 贝 — something valuable, hence costly. The top piece in the traditional form 貴 is 臾 (yú), which is the phonetic element — the link between yú and guì is, like rén/qiān in Lesson 9, an Old Chinese correspondence not audible in modern Mandarin. Simplified Chinese replaced 臾 with a graphic variant (𠀐) that has no standard pinyin of its own, hence the "?" in the diagram. (Wiktionary: 贵)

So Lesson 3's 太贵 (tài guì) really does mean what it sounded like: "too" plus a character whose meaningful half is literally "shell/money" — "too costly."

贝's shape hides a coincidence, not a clue. The modern 贝 glyph can be drawn as 冂 (an open-topped box) over 人 (Lesson 1's "person") — but that's simplification-era stroke shape, not real etymology; 貝 was a shell long before simplification gave it a shape that happens to resemble 人's legs at the bottom.

钱 (money) uses the contracted left hand side form of 金:

钱qiánmoney

钅+戋=钱

钅 is "metal" (today's 金). 戋 (jiān, "small, trifling") is purely phonetic — jiān and qián are close enough that the sound signal is still audible. (Wiktionary: 钱)

Stroke order

贝 — 4 strokes (simplified)

Outer frame first, then the two lower "feet" of the shell shape:

Stroke order diagram for 贝, 4 strokes
贝 — 4 strokes
▶ watch animated

金 — 8 strokes

Top 人-shape first, then the horizontal, then the inner box, then the two bottom strokes:

Stroke order diagram for 金, 8 strokes
金 — 8 strokes
▶ watch animated

Check your recall

Which character completes the five classical elements (木水火土__)?

金 becomes which shape on the left side of a character, as in 钱 and 钢?

贝 originally depicted:

贵 (expensive) has 贝 as its meaningful bottom half because:

Go further

Etymology sources for every character above are linked inline. For the rigorous version of any of them, see the Outlier Dictionary of Chinese Characters.

Out in the world: 贵 and 太贵 are useful the moment you're shopping or bargaining; 钱 (money) and the 钅-shape-shift are worth watching for on price tags, ATMs (取钱, "withdraw money"), and receipts.