běn

Origin & Mnemonic:

The root or base of a tree. Origin, foundation, source, one’s own; measure word for books. A tree (木) with a short stroke at its foot marking the root.

A tree with a mark at its base, pointing to the root or origin.

本 is 木 (tree) with a short horizontal stroke at the bottom, marking the roots. That mark points to the base or origin, which is why 本 means 'root,' 'origin,' or 'this very.' This is a genuine pictograph, not folk etymology.

tree a mark at the base (indicating the root)

Common Usage & Traps

  • 本子 (běnzi) — notebook
  • 一本书 (yì běn shū) — one book
  • 本来 (běnlái) — originally
  • 本人 (běnrén) — oneself
  • 日本 (Rìběn) — Japan
  • 一个书 一本书

    Books are counted with 本, not the general measure word 个.

  • 本子书 本子 or 书

    本子 means 'notebook' and 书 means 'book'; combining them is redundant and unnatural.

What is the difference between 本 and 木?

本 has an extra horizontal stroke at the bottom of 木, turning 'tree' into 'root/origin'.

木 is a tree with branches and roots. Adding a short stroke at the base of 木 creates 本, which points to the root—the origin. So 木 means 'tree' or 'wood', while 本 means 'root', 'origin', or 'this very'. They look similar but the extra stroke changes the meaning completely.

CharacterMeaningVisual
tree, woodtree with branches and roots
root, origin, counter for bookstree with a mark at the base

When do I use 本 as a measure word?

Use 本 to count books, notebooks, and similar bound items.

本 is the dedicated measure word for books, notebooks, magazines, and other bound volumes. For example, 一本书 (one book), 两本本子 (two notebooks). Do not use 个 for books; it sounds unnatural. Also, 本 can stand alone as a noun meaning 'notebook' in words like 本子.

PhraseNatural?Why
一本书NaturalCorrect measure word for books
一个书Avoid个 is too general; use 本
两本本子Natural本 counts notebooks

Appears in Stories 1 story

《一两件新衣服》 New Clothes and Good Friends
HSK 1 ~2 min read 84 chars
Read story →

This playful poem helps you count and practice vocabulary about clothes, students, and pets. Enjoy the rhythm while learning new words.

  • 一两件衣服 两三本 汉语书

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