笔画

A stroke (笔画 bǐhuà) is a single continuous mark made without lifting the brush or pen. It begins where the instrument touches the surface and ends where it lifts. The number of times you lift the pen equals the number of strokes in the character.

笔画 literally means "brush mark" — 笔 (brush, pen) + 画 (to draw, mark, stroke). The word applies equally to brush calligraphy and ballpoint pen writing; the stroke repertoire is the same.

Chinese has a relatively small set of stroke types — around 30 named variants in strict calligraphic analysis, but reducible to 8 fundamental shapes that cover all characters. Every component, every radical, every full character is assembled from these same building blocks. Knowing the strokes means you can reproduce any character you've seen, even one you've never written before.

The classical mnemonic for the eight strokes is the character 永 yǒng (eternity, permanence) — it contains all eight fundamental stroke types in a single character, making it the traditional practice character for beginning calligraphers.

Stroke order (笔顺 bǐshùn) is the prescribed sequence for writing a character's strokes. It is not arbitrary — stroke order developed over two millennia of brushwork to produce the most efficient and aesthetically balanced result. The basic rules:

Top before bottom. Write upper components before lower ones: 三 is written top-line, middle-line, bottom-line.

Left before right. Write left components before right ones: 明 (bright) — write 日 (left) then 月 (right).

Horizontal before vertical when strokes cross: write 十 as horizontal first, then vertical.

Enclosures: frame first, contents second, close last. 国 — write the outer frame (three sides), fill the interior 玉, then close the bottom. The closing stroke comes last so the interior is not trapped.

Center before sides in vertically symmetric characters: 小 is written center vertical stroke first, then left dot, then right dot.

Left-falling before right-falling when both appear: 人 — write 撇 (left-falling) first, then 捺 (right-falling).

Stroke count is used in two main ways. First, within a radical section of a traditional dictionary, characters are ordered by the stroke count of their non-radical components. To find 清 (clear): identify radical 氵(3 strokes), subtract from total 11 strokes, look under 8-stroke entries in the water section.

Second, stroke-count indexes (笔画索引) in dictionaries allow lookup by total stroke count when the radical is unclear — a backup method when you cannot identify which part of a character is the radical.

Common stroke counts for reference: 一 = 1 stroke. 人 = 2. 山 = 3. 中 = 4. 生 = 5. 字 = 6. 我 = 7. 明 = 8. 南 = 9. 爱 = 10. Characters above 25 strokes are rare in everyday use. The most stroke-heavy common character is 龘 (dragons walking together) at 48 strokes — an extreme outlier found in classical texts.

Most Chinese smartphone and computer users type using pinyin input (typing the romanization and selecting from a list) or voice input. Stroke-based input remains an option, particularly for users who know a character's pronunciation but not its spelling, or for users entering characters on small screens where handwriting recognition works well.

The 五笔输入法 (Wǔbǐ, "five-stroke input") is a professional input method that maps every character to a sequence of stroke-group codes typed on a standard keyboard — extremely fast for experienced users but requiring memorization of a full coding table. It was dominant in Chinese offices through the 1990s and early 2000s before pinyin input improved.

Handwriting recognition on modern devices (手写输入 shǒuxiě shūrù) has become accurate enough that stroke order is less critical for input than it once was — the algorithm can usually identify a character even if strokes are written out of order. But correct stroke order still matters for calligraphy, for fast handwriting, and as a cultural competence signal.